Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
  • B29C65/743—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc
  • B29C65/7441—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area using the same tool for both joining and severing, said tool being monobloc or formed by several parts mounted together and forming a monobloc for making welds and cuts of other than simple rectilinear form
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
  • A41D13/02—Overalls, e.g. bodysuits or bib overalls
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
  • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
  • A41D13/12—Surgeons' or patients' gowns or dresses
  • A41D13/1236—Patients' garments
  • A41D13/1263—Suits
• • A—HUMAN NECESSITIES
  • A41—WEARING APPAREL
  • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
  • A41H42/00—Multi-step production lines for making clothes
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
  • B29C65/74—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by welding and severing, or by joining and severing, the severing being performed in the area to be joined, next to the area to be joined, in the joint area or next to the joint area
  • B29C65/749—Removing scrap
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
  • B29C66/729—Textile or other fibrous material made from plastics
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
  • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
  • B29C66/729—Textile or other fibrous material made from plastics
  • B29C66/7294—Non woven mats, e.g. felt
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C66/00—General aspects of processes or apparatus for joining preformed parts
  • B29C66/80—General aspects of machine operations or constructions and parts thereof
  • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
  • B29C66/832—Reciprocating joining or pressing tools
  • B29C66/8322—Joining or pressing tools reciprocating along one axis
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/48—Wearing apparel
  • B29L2031/4842—Outerwear

Definitions

• the present invention relates to an improvement made to the methods and installations enabling the fa ⁇ brication of clothing articles, in particular single-use work clothes, such as coveralls, blouses, pants, jackets, etc., which can be used more particularly. ⁇ especially in the medical field.
• the garments thus obtained have however major drawbacks which can explain that their use has not been generalized.
• the solutions proposed do not make it possible to produce articles of clothing of the "jacket” type, so that in many fields, in particular in the medical field, it is desirable to have sets of the "combination" type. covering not only the upper body of the user but also the legs.
• such garments do not adapt well to the morphology and measurements of the users who may vary widely.
• the method according to the invention consists in making the garment by assembling edge to edge of at least two flat strips (non-woven or similar material such as plastic, or even fabric), and it is characterized in that the development of the garment is carried out by implementing at least the combination of the following operations:
• Such a process can either be implemented for the production in series of a large number of garments of determined sizes or, possibly, be implemented directly on the site of use of the garment, the latter being carried out directly on the person who must use it and its size.
• the cog (shaped) mistletoe follows the outline of the volume occupied by the body of the user, the latter is positioned inside the said open shell and the closure is carried out according to the contour of the user's body.
• non-woven plies based on materials are used which make it possible to heat-seal or heat-bond the plies together.
• mistletoe can be placed either directly on the same site of use when the garment is made directly on the person mistletoe must use it, or possibly on a separate site when you want to make clothes in large series at a specific size.
• Such an assembly essentially comprises, mounted on a fixed base or base, two elementary blocks for forming the garment, movable relative to one another, and the structure of which is such:
• one of the blocks comprises means making it possible to deliver at least one flat (non-woven) sheet over a height corresponding to the size of the user;
• the two blocks include mistletoe means, in co-operation, make it possible to conform said flat sheet of cogue open on its front face, and whose shape is such that it not only covers the back of the user, but also , the lateral faces of the latter (sides, crotch, underarm) projecting laterally relative to the plane passing through the front of the body of the user;
• the second block movable relative to the preci ⁇ ted block, comprising means allowing, after possible fitting of the user inside the preformed shell, to deliver a second ply on the front and, with means complementary provided on the first block, to join edge to edge the shell and the covering sheet substantially along lines corresponding to the image (or silhouette) of the projection of the user's body in a plane parallel to the latter.
• the formation of the open cog following the contour of the latter except for its surface frontal is obtained by means of movable elements in the form of bars and blades making it possible not only to shape the sheet intended to form the cogue, and more particularly the zones corresponding to the crotch and below the arms , but also heat sealing, on the one hand of the parts cut from the first ply so as to allow it to be shaped and, on the other hand, of the peripheral edges of the cogue formed with the second ply mistletoe is attached to the front of the user, when the user has entered the cogue.
• the two blocks are preferably arranged vertically on the support frame.
• the two blocks are preferably arranged horizontally.
• a pre-cut line is produced over part of the height of the garment, possibly associated with a closure element allowing the garment to be removed after use, and possibly its positioning around the user when the garment is not shaped directly around him.
• the sets of bars and shaping blades are mounted on the blocks so as to be moved, not only in depth to determine the volume of the cogue, but also laterally and in height, in order to ability to obtain clothing of different sizes from a single installation.
• FIG. 1 is a schematic perspective view of the assembly of an installation allowing the production of a garment according to the invention, and more particularly of a work suit;
• FIG. 2a, 2b, 2c, 3a, 3b, 3c illustrate respec ⁇ tively in perspective, seen from the front and side, the structure and operation of the two sets or blocks (A, B) of an installation conforming to the invention making it possible on the one hand, the open cogue forming one of the elements of the garment according to the invention and, on the other hand, closing said cogue after positioning the user inside of the latter;
• - Figures -4,4b, 4c illustrate in top view, left view in section and front view in section, the structure of an embodiment of a base supporting the blocks or elements illustrated in Figures 2a , 2b, 2c and 3a, 3b, 3c;
• FIGS. 5a to 5j illustrate schematically the different operating phases for the formation of a garment according to the process according to the invention and more particularly, the realization of the open cogue of the garment and then the finishing of the latter around the body of the user and;
• FIG. 6a and 6b illustrate the user dressed in a garment obtained according to the invention
• FIG. 8 is an enlarged detail view showing the formation phase of the crotch of a garment on an installation according to the invention
• FIG. 9 is a schematic perspective view showing the way in which the leg length compensation is performed as a function of the size of the garment to be produced.
• FIG. 1 schematically illustrates, in perspective view, the whole of an installation allowing the implementation of the method according to the invention, which method generally consists of carrying out on the site of use, directly on the person and to his own measurements, the work clothing.
• such a machine consists essentially of two assemblies or shaping blocks, respectively (A) and (B), mounted on a support base (C).
• These shaping assemblies (A) and (B) are displaced relative to each other by a sufficient distance to allow the passage of the person to be dressed.
• one of the blocks (A) is fixed, the other block (B) being movable on the base (C).
• these two blocks (A) and (B) make it possible, from flat sheets (nonwoven based on heat-sealable or heat-sealable material), a cogue open on its front face and of which the dimensions and the shape correspond substantially to the volume occupied by the body of the user and which surrounds it not only on the sides, but also in the zones which correspond to the crotch and below the arms then, after positioning said user inside the shell thus formed, to attach to the front of the body a second ply allowing the closure of the shell by securing with the edges of the latter along the outline (or silhouette) of the body of said user.
• the sheet material (preferably non-woven) intended to form the garment is stored in the form of rolls inside the two blocks (A) and (B).
• the transformation of this material into a garment is carried out, after positioning the training organs in height and in width, according to the size of the user in the following manner.
• the tablecloth associated with the block In a first phase, the tablecloth associated with the block
• a third phase the user enters the machine between the two blocks (A) and (B) and enters the inside of the cogue formed on the block (A).
• the block (B) approaches the block (A) and comes into contact with the latter, and the closure is then carried out on the front face of the user by means of the ply carried by the block (B) by welding and cutting the two layers around the periphery of the user.
• the two blocks move away from each other, the user dressed in the garment can leave the assembly and the waste materials are removed, for example by being recovered inside the base ( VS) .
• the different elements (block A, block B and base C) of a machine according to the invention are designed as follows.
• two rolls of material (1,2) arranged inside the block (A) are used, in particular for the purpose of saving raw material (see FIGS. 2a to 2c), l one (1) having a width of approximately 90 cms and which allows the part corresponding to the bust and legs of the user to be produced, the other (2) having a width of approximately 160 cms and allowing to realize the part corresponding to the arms and shoulders.
• These rolls of material are delivered by means of a roller drive system (3) or the like.
• Cutting systems (4) are provided to make the opening corresponding to the neck thus formed to cut the length of the ply (2) to a length corresponding to the length of the sleeves.
• Length cutting elements (5) for the plies (1) and (2) elements constituted for example by a cutting blade constituted by an endless wire stretched between two pulleys, one of which is driven by an electric motor, allows to cut the sheets (1) and (2) of the desired length, depending on the size of the user.
• Maintaining the webs (1/2) issued against the internal surface of the block (A) is effected by suction through slots (6) provided on the front face of the block
• a suction source (not shown) is of course provided inside said block (A).
• retractable assemblies (7, 8, 9) are provided in order to form the crotch (elements 7 and 8), and the forming of the exterior of the body (element 9).
• Such elements are essentially in the form of movable blades which not only make it possible to cut the material, but also include try electrical resistances (or equivalent) which will allow the edges of the formed cogue to be associated with the covering ply, as will be seen later and which is made from one or more rolls of material associated with said block (B).
• the block (A) also includes steps (10) for positioning the person and supports a programmable automaton for controlling the mechanism, as well as a control box (12) for manual triggering of the final cycle. closing the cogue after user entry inside it.
• the installation according to the invention is designed so that it can be adjusted as a function of the size of the garment to be produced.
• the manner in which such adjustments are made is illustrated more particularly by FIGS. 7 and 9.
• the height adjustments are defined relative to the base (C).
• the block (A) is mounted on the base (C) by means of cylinders which allow it to be raised or lowered.
• the geometrical shapes which represent the silhouette are fixed on the block (A).
• the block (A) is in the middle of the base (C) (height).
• the base (C) has passage lights for the exit of conforming and sealing bars, this mistletoe allows them to be moved to all levels.
• an adjustment according to three determined positions in the vertical direction is sufficient to adapt to all conformations of people.
• a finer adjustment, for example progressive could be envisaged. .,,
• the block (B) is also vertically movable. It comprises means making it possible to realize, in cooperation with the elements carried by the block (A), the zones corresponding to the crotch and underarms on the sheet carried by the block (A) as well as the finish of the garment, to know closure of the open cogue after conformation and positioning of the user inside the latter. As can be seen in more detail in FIGS.
• said block (B) comprises a series of retractable plates (shown in dotted lines in the figures preci ⁇ tees), for example having a height of five centimeters each, these plagues being able to be raised or lowered depending on the positioning of the block (A) and allowing to remain, between the block (B) and the upper surface of the base (C), a space for the passage of the person's feet must be covered with clothing (see Figure 7).
• the block (B) comprises a set of solder and cut (28) (see FIGS. 3a to 3c), actuated by cylinders and which makes it possible to cut the ply carried on the block (A) along the central line (8) (see FIG. 2). It also carries a set of shaping elements (30), retractable inside said block (B), and which allow the area corresponding to the armpits to be produced on the web carried by the block (A). After using these elements to form the zones corresponding to the crotch and underarms, these elements are camouflaged inside the block (B).
• the block (B) also supports means allowing the connection to be made elementary layers which can enter into the realization of the half-cogue. In the illustrated exemplary embodiment, these means consist of a transverse sealing bar making it possible to link the sheets (1) and (2) transversely.
• this closure ply is also produced from two material supply rolls (nonwoven) of different widths, one (21) having a width of approximately 60 cms, for example allowing to realize the front of the bust and legs, the other (22) of greater width (160 cms approximately), allowing to realize the front of the arms and shoulders.
• this closing ply is obtained by first delivering a determined length of the ply (21) intended to form the zone corresponding to the legs and at the height of the bust, then by associating with this ply, through the inter ⁇ medial of a set of solder (25) a length of very wide sheets in order to form the zone corresponding to the shoulders and arms.
• the covering ply thus produced inside the block (B) is then unwound and brought in and positioned on the front face against the laguelle, it is plagued by suction and this, by means of lights (32) provided over an area corresponding substantially to the periphery of the silhouette of the person intended to receive the garment.
• the cogue being produced is held against the block (A), the cover sheet also being produced and kept plagued against the block (B), the user can position himself inside the cogue and the operation for finishing the garment can be made by thermosou ⁇ hard according to the outline of the cogue and the web carried by the block (B).
• the two blocks (A) and (B) of shaping the garment are mounted movable relative to each other on a base (C).
• the block (A) is fixed while the block (B) is movable. It is obvious that it could be envisaged to reverse the displacements or to move the two blocks.
• the mounting of the block (B) on the base (C) is carried out as illustrated in FIGS. 4a to 4c by providing on said block (C) guide rails and carrying carriages (41) of said block mobile (B).
• the displacements are obtained by screw reducing motors (42) or others, closing safety systems (43) being of course provided.
• the block (C) also makes it possible to recover the waste produced after cutting.
• a retractable hatch (44) is provided at the bottom and is actuated by a screw motor. Inside the recovery chamber, there is an endless screw for compacting and a waste pusher (45), a hot air generator for reducing waste (46), and a presser for the storage of said waste (47).
• the shaping and cutting elements can also be moved in width and depth. These settings are carried out mainly mechanically for the block (A).
• the heat-sealing bars that the block (A) comprises can be moved in three positions (or more) laterally and, as regards the depth, the adjustments are made by leaving more or less relative to the surface of the block (A ) said bars.
• FIGS. 5a to 5j The implementation of such an installation is illustrated in FIGS. 5a to 5j, and makes it possible to obtain a garment as illustrated in FIGS. 6a and 6b.
• FIGS. 5d and 5g are detail views showing more particularly the operating phase consisting in forming the zones corresponding to the crotch and the armpits, the cogue of which is intended to form the main part of a garment in accordance with the invention.
• the person displays on the keyboard his size in centimeters and the various elements of the machine are put in place to achieve the positioning in height of the blocks (A) and (B) and in width and depth of the shaping and cutting elements according to a determined size. That being done, the operations proceed according to the following process.
• the supply of the sheet (1) is carried out according to a predetermined length against the internal face of the block (A). In the course of unwinding, two slits are made in said sheet. The sheet is held by pressure against the front face of the block (A) and the fabric cut in length by the small cutting blade. The unused tablecloth rewinds after cutting.
• Phase B Figures 5b, 5c, 5d and Figure 8
• This phase concerns the creation of the crotch from the blocks (A) and (B).
• the assembly (28) comes out of the block (B), covers the blade (8) and sucks the fabric against its internal faces.
• the comfort shaping element (7) disappears inside the block (A).
• the system (28) closes, welds and cuts the fabric, thereby obtaining the comfort form of the bottom of the pants. This being done, the element (28) returns to its initial position inside the block (B) and releases the waste mistletoe falls in said block.
• the tablecloths intended to constitute the shoulders and the back of the arms are prepared inside the block (A) by pre-cutting the neck, cutting the form of ease of the armpits and the back, cutting of the width.
• the sheet is put in place, plagued by vacuum and cut to length by the very wide cutting blade (5).
• the two elementary layers thus formed are welded at the back by a sealing bar (29) released from the movable block (2). Once the welding has been carried out, the element (29) returns to its initial position inside the block (B).
• the movable block (B) then takes its place.
• the roll (21) is unwound with a predetermined length, the web being cut at (24) and positioned at (25) to be assembled there.
• the very wide tablecloth (22) unrolls, is cut to make the armpit comfort forms and is assembled with the narrow width tablecloth (25).
• the tablecloth unrolls to the desired length for cutting the neck at (24).
• a weakening of the fabric is caused over part of its length (shown in dotted lines on the Figure 6b), while scrolling. It is also possible to envisage associating with this zone shown in dotted lines a slider closure or any other element allowing the garment to be removed more easily after use.
• the assembly thus formed inside the block emerges from the latter and is positioned against the front face (FIG. 5h) where it is held by suction and separated from the food roller by the cutting system (27).
• This operation is carried out by the cooperation of blocks (A) and (B).
• the elementary parts of the garment being prepared as seen above, the user enters the interior of the machine, ensuring that the fabric is correctly disposed and takes place inside the cog formed on the block. (AT).
• the user controls the final cycle by manual control (12).
• the movable block (B) closes on the fixed block (A) and the heat-sealing bars (7,8) weld and cut the circumference of the garment. This being done, the block (B) moves back to its initial position with the waste maintained by vacuum. The person can therefore exit the machine coated with the clothing (FIG. 5g, 5i).
• the waste is recovered, treated and conditioned (see FIGS. 4a and 5j).
• the waste mistletoe is at the bottom of the block (B) thus that that mistletoe remained on the internal face of said block (B) falls inside the hatch provided on the support block (C). They are pushed by the screw (45) towards the melting zone (46). In this zone, air flows at the melting temperature of the sheet, the waste shrinks, is pushed through the element (47) inside a storage area where it is compacted by a pressing element (48).
• the invention is not limited to the embodiment described above, but it covers all the variants produced in the same spirit.
• different types of welds and cuts of the fabric can be envisaged, just as it could be envisaged not to heat seal the plies together, but possibly to assemble them by any other equivalent means such as glue bonding.
• the main welding and cutting elements that comprise an installation in accordance with the invention must be able to move along three axes: depth, width and height.
• Such displacements are given by any suitable means, such as for example by screw jacks and geared motors slaved to movement. All movements in abutment can be carried out by means of pneumatic cylinders.
• pneumatic cylinders Of course, such an assembly is equipped with safety means, such as pressure detectors to prevent the closing of the machine in the event that a part of the person's body is out of the imprint, movement detector. to prevent the cycle from running welding when part of the person's clothing is placed between the self-sealing bars.
• Manual control means are also provided in order to be able to separate the blocks from each other if necessary, for example in the event of a power failure.
• the face of the block (B) may also include a drawn silhouette allowing the garment to be viewed.
• the method according to the invention and the installations allowing its implementation can be easily adapted to produce garments in large series, according to a determined size, the only difference residing in the fact that the user does not put the garment on after completion and, as a consequence, it is necessary to associate with the garment a reversible opening and closing means making it possible to put on and remove said garment.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Textile Engineering (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=9396493

Family Applications (1)

Country Status (5)

Cited By (1)

Families Citing this family (3)

Family Cites Families (2)

• 1990
  • 1990-05-04 FR FR9005862A patent/FR2661593A1/fr not_active Withdrawn
• 1991
  • 1991-04-30 JP JP3509735A patent/JPH05502070A/ja active Pending
  • 1991-04-30 CA CA002062762A patent/CA2062762A1/fr not_active Abandoned
  • 1991-04-30 EP EP91909949A patent/EP0481064A1/de not_active Withdrawn
  • 1991-04-30 WO PCT/FR1991/000354 patent/WO1991016828A1/fr not_active Application Discontinuation

Non-Patent Citations (1)

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