NO130552B - - Google Patents
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- Publication number
- NO130552B NO130552B NO01126/73A NO112673A NO130552B NO 130552 B NO130552 B NO 130552B NO 01126/73 A NO01126/73 A NO 01126/73A NO 112673 A NO112673 A NO 112673A NO 130552 B NO130552 B NO 130552B
- Authority
- NO
- Norway
- Prior art keywords
- wire
- housing
- closing part
- slot
- slots
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 5
- 238000009413 insulation Methods 0.000 claims description 3
- 239000004020 conductor Substances 0.000 description 2
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
- H01R4/2416—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type
- H01R4/2445—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives
- H01R4/245—Connections using contact members penetrating or cutting insulation or cable strands the contact members having insulation-cutting edges, e.g. of tuning fork type the contact members having additional means acting on the insulation or the wire, e.g. additional insulation penetrating means, strain relief means or wire cutting knives the additional means having two or more slotted flat portions
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/70—Insulation of connections
Landscapes
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
- Multi-Conductor Connections (AREA)
Description
Forbindelsesklemme for elektrisk Connection clamp for electrical
ledende kjerner i isolerte led- conductive cores in insulated led-
ninger . nings.
Denne oppfinnelse angår en forbindelsesklemme for elektrisk ledende kjerner i isolerte ledninger, omfattende et isolerende hus med en bunn og sidevegger som definerer en adgangsåpning til husets indre, en lukkedel som er bevegbar til en stilling hvor den lukker åpningen, en utgangsåpning for hver ledning samt første og andre metallplatedeler plasert med innbyrdes avstand i huset og slik at en kant på hver plate vender bort fra bunnen i dette, et flertall slisser som munner ut i en slik kant, hvor hver sliss i hver plate flukter med en sliss i en annen plate og kan oppta en isolert ledning som presses inn i slissen av lukkedelen når den beveges inn i lukkestilling, slik at kantene av slissene trenger gjennom ledningsisolasjonen for å danne elektrisk kontakt med den ledende kjerne i denne, og ledningskuttekanter anordnet i flukt med i det minste noen slisser. This invention relates to a connection clamp for electrically conductive cores in insulated wires, comprising an insulating housing with a bottom and side walls defining an access opening to the interior of the housing, a closing part which is movable to a position where it closes the opening, an exit opening for each wire and first and other sheet metal parts placed at a distance from each other in the housing and such that an edge of each plate faces away from the bottom therein, a plurality of slots opening into such an edge, where each slot in each plate aligns with a slot in another plate and may receive an insulated wire which is pressed into the slot of the closing member when it is moved into the closing position, such that the edges of the slots penetrate the wire insulation to make electrical contact with the conductive core therein, and wire cutting edges arranged flush with at least some of the slots .
For på en praktisk fordelaktig måte å tilveiebringe automatisk avkutting av ledningsendene er klemmen ifølge oppfinnelsen karakterisert ved at hver kuttekant er plasert for samvirke med lukkedelen for å avkutte en ledning som er opptatt i den samhørende sliss når ledningen blir presset inn i denne av lukkedelen, og at lukkedelen har innvendige ribber med første partier til å presse ledningene inn i slissene og plane andre partier til å samvirke med kuttekantene for å avkutte ledningsendene under lukning av lukkedelen. In order to provide automatic cutting of the cable ends in a practically advantageous manner, the clamp according to the invention is characterized in that each cutting edge is positioned to cooperate with the closure part to cut off a cable which is occupied in the corresponding slot when the cable is pressed into it by the closure part, and that the closing part has internal ribs with first parts to press the wires into the slots and planar second parts to cooperate with the cutting edges to cut off the wire ends during closing of the closing part.
I henhold til en fordelaktig utførelsesform av oppfinnelsen er lukkedelen hengselforbundet med huset og fortrinns-vis har en fjærende låsedel for inngrep i en utsparing i en vegg i huset for å holde lukkedelen lukket. At lukkedelen på denne måte er hengselforbundet og således kan ansees å danne et lokk for huset, representerer en viktig praktisk fordel når lednings-kobling skal utføres under vanskelige forhold med hensyn til plass og lys, såsom i et mannhull. Problemene med innføring og håndtering av ledninger og klemmer er åpenbart store når det taes i betraktning at de her aktuelle klemmer er av størrelses-orden 10 millimeter og mindre i lengde. According to an advantageous embodiment of the invention, the closing part is hinged to the housing and preferably has a resilient locking part for engagement in a recess in a wall of the housing to keep the closing part closed. The fact that the closing part is hinged in this way and can thus be considered to form a lid for the house, represents an important practical advantage when cable connection is to be carried out under difficult conditions with regard to space and light, such as in a manhole. The problems with the introduction and handling of cables and clamps are obviously great when it is taken into account that the clamps in question here are of the order of 10 millimeters and less in length.
Ifølge en ytterligere utførelsesform av oppfinnelsen er klemmen forsynt med ledningslokaliserende flenser ved toppen av en del av den ene endevegg slik at de strekker seg delvis tvers over hver utgangsåpning. Disse flenser smekker over og griper ledninger som legges inn i husets åpninger og eliminerer behovet for å holde to eller flere ledninger manuelt i stilling mens lukkedelen er åpen. Videre kan klemmen med ledninger stik-kes inn i et koblingsverktøy ved å holde i ledningene, hvilket er bekvemt og lettvint.i praksis. According to a further embodiment of the invention, the clamp is provided with wire locating flanges at the top of a part of one end wall so that they extend partially across each exit opening. These flanges snap over and grip wires that are inserted into housing openings and eliminate the need to manually hold two or more wires in position while the closure is open. Furthermore, the clamp with wires can be inserted into a connection tool by holding the wires, which is convenient and easy in practice.
Forbindelsesklemmer ifølge oppfinnelsen kan fremstilles med meget små dimensjoner til bruk ved forbindelser av ledninger i flerleder-telefonkabler som skal spleises. Connection clamps according to the invention can be produced with very small dimensions for use when connecting wires in multi-conductor telephone cables to be spliced.
Da hver kabel vanligvis omfatter et meget stort an-tall ledninger er det ønskelig at omfanget av hver forbindelse blir redusert så meget som mulig. As each cable usually comprises a very large number of wires, it is desirable that the scope of each connection be reduced as much as possible.
Oppfinnelsen forklares i det følgende nærmere under henvisning til de skjematiske figurer, hvor The invention is explained in more detail in the following with reference to the schematic figures, where
fig. 1 er et perspektivriss av en utførelsesform for et kontakt-eleraent ifølge oppfinnelsen, fig. 1 is a perspective view of an embodiment of a contact element according to the invention,
fig. 2 det samme for et isolerende hus for elementet, fig. 3 et perspektivriss av elementet plassert i huset, fig. 4 det samme med deler av huset fjernet og med inn-satte ledninger, og fig. 2 the same for an insulating housing for the element, fig. 3 a perspective view of the element placed in the housing, fig. 4 the same with parts of the house removed and with wires inserted, and
fig. 5 et perspektivriss av en annen utførelsesform for huset på fig. 2. fig. 5 is a perspective view of another embodiment of the housing in fig. 2.
Det på fig. 1 viste kontaktelement 2 omfatter to . metallplate-deler 4 ved hver ende av to steg 8, 10, som er i ett stykke med de øvre kanter 12 av platedelene 4 (som sett på fig. That in fig. 1 shown contact element 2 comprises two . metal plate parts 4 at each end of two steps 8, 10, which are in one piece with the upper edges 12 of the plate parts 4 (as seen in fig.
1). Et flertall ledningsopptagende slisser 14 munner ut i kantene 12, hvor hver av slissene 14 i den ene platedel 4 flukter med en tilsvarende sliss 14 i den andre platedel 4 og har utvidede munninger 15. Bare den ene av slissene 14 i hvert fluktende par har en tilhørende ledningskuttekant 16 som er utformet på ytterligere platedeler 18 i ett stykke med delene 4 via et plant steg 19. Elementet i-2 er stanset og formet ut fra et vanlig metallplateemne. r- 1). A plurality of wire receiving slots 14 open into the edges 12, where each of the slots 14 in one plate part 4 aligns with a corresponding slot 14 in the other plate part 4 and has widened mouths 15. Only one of the slots 14 in each aligned pair has a associated wire cutting edge 16 which is formed on further plate parts 18 in one piece with the parts 4 via a flat step 19. The element i-2 is punched and shaped from a normal sheet metal blank. r-
Det på fig. 2 viste isolerende hus 20 for elementet 2 er utformet, som en avlang rektangulær eske med en åpning 22 som gir adgang til husets indre og kan lukkes ved hjelp av en lokk-del 24 som er forbundet med huset 20 via et hengsel 25. Huset 20 har en innvendig ribbe 26 som strekker seg opp fra bunnen i dette i husets lengderetning og har en plan øvre flate 30 (som sett på fig. 2). Begge endevegger 32 i huset 20 har ledningsopptagende innskjæringer 34 som flukter med hverandre fra endevegg til endevegg og munner ut i den øvre kant av disse (som sett på fig. 2). That in fig. 2, the insulating housing 20 for the element 2 is designed as an elongated rectangular box with an opening 22 which gives access to the interior of the housing and can be closed by means of a lid part 24 which is connected to the housing 20 via a hinge 25. The housing 20 has an internal rib 26 which extends up from the bottom therein in the longitudinal direction of the housing and has a flat upper surface 30 (as seen in Fig. 2). Both end walls 32 in the housing 20 have wire-receiving incisions 34 which flow with each other from end wall to end wall and open into the upper edge of these (as seen in Fig. 2).
Lokket 24 har langsgående, parallelle ribber 36 med et mellomrom til å oppta ribben 26 med klaring. Begge ribber 36 har endeseksjoner 38 til å samvirke med kuttekantene 16 på elementet 2 for å avkutte en isolert ledningsende, som forklart nedenfor, samt partier 40 med redusert tverrsnitt og dimensjonert til å bli opptatt i slissene 14 i dette element. Sek-sjonene 38 er dimensjonert slik at de passer inn i innskjæringene 34 i huset 20. Lokket 24 har ved den kant som vender bort fra hengslet 25 en fjærende låsedel 42 som har en mothake i den frie ende med en skrå kamflate 44 og er dimensjonert til inngrep i The lid 24 has longitudinal parallel ribs 36 with a space to receive the rib 26 with clearance. Both ribs 36 have end sections 38 to cooperate with the cutting edges 16 of the element 2 to cut off an insulated wire end, as explained below, as well as portions 40 of reduced cross-section and dimensioned to be received in the slots 14 in this element. The sections 38 are dimensioned so that they fit into the recesses 34 in the housing 20. The lid 24 has, at the edge facing away from the hinge 25, a springy locking part 42 which has a barb at the free end with an inclined comb surface 44 and is dimensioned for intervention in
en utsparing 46 i den ene sidevegg 48 i Tiuset 20. a recess 46 in one side wall 48 of the Tiuset 20.
Fig. 3 viser elementet 2 anordnet i huset 20 med hver av platene 4 og den samhørende plate 18 plassert mellom hver sin ende av ribben 26 og den motstående endevegg i huset 20, og med steget 10 understøttet på flaten 30 på ribben 26 og stegene 19 hvilende mot bunnen 28 i huset 20 (fig. 4). Kuttekantene 16 strekker seg på tvers av hver sin innskjæring 34 innvendig i huset 20 nær ved den åpne ende av disse. Fig. 3 shows the element 2 arranged in the housing 20 with each of the plates 4 and the corresponding plate 18 placed between each end of the rib 26 and the opposite end wall in the housing 20, and with the step 10 supported on the surface 30 of the rib 26 and the steps 19 resting against the bottom 28 in the housing 20 (fig. 4). The cutting edges 16 extend across each respective cut-out 34 inside the housing 20 close to the open end thereof.
Bruken av kontaktanordningen ifølge oppfinnelsen er vist på fig. 4. Lokket 24 er i åpen stilling, og en isolert ledning Wl er plassert i munningene 15 av det ene par fluktende slisser 14, mens en annen isolert ledning W2_ er plassert på The use of the contact device according to the invention is shown in fig. 4. The lid 24 is in the open position, and an insulated wire W1 is placed in the mouths 15 of one pair of aligned slots 14, while another insulated wire W2_ is placed on
samme måte i det andre slisspar 14, slik at hver ledning bæres av kantene i to munninger 15 og dessuten strekker seg henover en av kuttekantene 16 og gjennom et par fluktende innskjæringer 34. Derefter beveges lokket inn i lukket stilling, slik at sek-sjonene 38 på ribbene 36 tvinger ledningene mot hver sin kuttekant 16 for å avkutte ledningsende-partiene P. Samtidig går partiene 40 på ribbene 36 inn i munningene 15 i slissene 14 for å presse ledningene ned i disse, slik at slisskantene bryter ledningsisolasjonen for å danne elektrisk kontakt med den ledende kjerne i ledningene. Slisskantene blir presset litt fra hverandre av denne kjerne slik at den kommer i fjærende inngrep med slissen. Skjønt lokket 24 er i lukket stilling på dette stadium er det vist i åpen stilling på fig. 4 for å illustrere til-slutningen av ledningene og avkuttingen, under hvilken platene 4 understøtter hverandre via stegene 8, 10. in the same way in the other slit pair 14, so that each wire is carried by the edges in two mouths 15 and also extends across one of the cutting edges 16 and through a pair of flush cuts 34. The lid is then moved into the closed position, so that the sections 38 on the ribs 36, the wires force each against their cutting edge 16 to cut off the wire end portions P. At the same time, the portions 40 on the ribs 36 enter the mouths 15 in the slots 14 to press the wires down into them, so that the slot edges break the wire insulation to form electrical contact with the conductive core in the wires. The slot edges are pushed slightly apart by this core so that it comes into resilient engagement with the slot. Although the lid 24 is in the closed position at this stage, it is shown in the open position in fig. 4 to illustrate the connection of the wires and the cut-off, during which the plates 4 support each other via the steps 8, 10.
Dessuten er platene 4, 18 sikret i fiksert opprett posisjon i kraft av den deformasjonsherdning av overgangssonene til steget 19 som er et resultat av at disse plater ved frem-stillingen av elementene 2 er skarpt ombøyet, dvs. vinkelrett på steget 19. Det forhold, at platene 4 er innbyrdes forbundet via stegene 8, 10 ved kantene 12 gjør det mulig at elementene 2 på enkel måte kan fremstilles ut fra et enkelt metallplateemne. In addition, the plates 4, 18 are secured in a fixed upright position by virtue of the deformation hardening of the transition zones to the step 19 which is a result of these plates being sharply bent during the production of the elements 2, i.e. perpendicular to the step 19. That condition, that the plates 4 are mutually connected via the steps 8, 10 at the edges 12 makes it possible that the elements 2 can be produced in a simple way from a single sheet metal blank.
Når lokket 24 lukkes vil kamflaten 44 på låsedelen 42 komme i anlegg mot den øvre innerside (fig. 4) av veggen 48 i huset 20 slik at låsedelen 42 presses fjærende i retning mot ribben 26. Når lokket 24 er lukket helt i vil delen 42 av-spennes slik at mothaken i den frie ende går im; i en utsparing 46 i veggen 48 og kommer i låselnngrep med den øvre (fig. 4) kant av utsparingen, og huset fastholdes i lukket tilstand. De deler av ledningene Wl og W2_ som ligger i innskjæringene 34 når huset er lukket blir klemt inne mellom de seksjoner 38 som trådte inn i disse innskjæringer under lukningen og bunnen av disse, hvorved det skapes trekkavlastning for ledningene. Da de øvrige seksjoner 38 ligger an mot kuttekantene 16 er det lukkede hus 20 i hovedsaken tett og beskytter forbindelsene i det mot inntregning av fuktighet. When the lid 24 is closed, the cam surface 44 on the locking part 42 will come into contact with the upper inner side (Fig. 4) of the wall 48 in the housing 20 so that the locking part 42 is pressed springily in the direction of the rib 26. When the lid 24 is completely closed, the part 42 is unbuckled so that the barb at the free end goes im; in a recess 46 in the wall 48 and comes into locking engagement with the upper (fig. 4) edge of the recess, and the housing is held in a closed state. The parts of the wires W1 and W2_ which lie in the recesses 34 when the housing is closed are sandwiched between the sections 38 which entered these recesses during closure and the bottom thereof, whereby strain relief is created for the wires. As the other sections 38 abut against the cutting edges 16, the closed housing 20 is essentially tight and protects the connections in it against the ingress of moisture.
Den kontaktanordning som er beskrevet ovenfor er særlig egnet til forbindelse av individuelle ledninger i flerleder telefonkabler som skal spleises, og den er egnet til å bli frem-stilt med meget små dimensjoner, f.eks. kan den være ca. 1 cm lang. The contact device described above is particularly suitable for connecting individual wires in multi-conductor telephone cables to be spliced, and it is suitable for being manufactured with very small dimensions, e.g. can it be approx. 1 cm long.
I den utførelsesform som er vist på fig. 5 finnes det tverrgående forsterkningsribber i lokket 24 som forbinder sek-sjonene 38 med hverandre. Ledningslokaliserende flenser 50 er utformet i ett stykke med den midtre del av endeveggene 32 ved toppen av disse og strekker seg et stykke ut over innskjæringene 34, slik at en isolert ledning før innsetningen kan bli holdt i flukt med de slisser den skal innsettes i bare ved å plassere ledningene i stilling i husåpningen med lokket løftet på linje med slissene og så smekke dette inn i innskjæringene 34 idet flensene 50 vil hindre at ledningene lett kommer ut av disse. In the embodiment shown in fig. 5 there are transverse reinforcing ribs in the lid 24 which connect the sections 38 to each other. Wire locating flanges 50 are formed in one piece with the middle part of the end walls 32 at the top thereof and extend a little beyond the recesses 34, so that an insulated wire before insertion can be held flush with the slots it is to be inserted into only by to place the wires in position in the housing opening with the lid lifted in line with the slits and then snap this into the cuts 34 as the flanges 50 will prevent the wires from easily coming out of them.
Claims (3)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES72179115U ES179115Y (en) | 1972-04-08 | 1972-04-08 | A CONTACT ELEMENT OF METAL SHEET. |
ES72179116U ES179116Y (en) | 1972-04-08 | 1972-04-08 | AN ELECTRICAL COUNTER. |
Publications (2)
Publication Number | Publication Date |
---|---|
NO130552B true NO130552B (en) | 1974-09-23 |
NO130552C NO130552C (en) | 1975-01-08 |
Family
ID=26155345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO1126/73A NO130552C (en) | 1972-04-08 | 1973-03-20 |
Country Status (19)
Country | Link |
---|---|
JP (1) | JPS5550349B2 (en) |
AR (1) | AR194881A1 (en) |
BG (1) | BG26824A3 (en) |
CA (1) | CA981352A (en) |
CH (1) | CH550492A (en) |
CS (1) | CS168647B2 (en) |
DD (1) | DD107816A5 (en) |
DE (1) | DE2314330C2 (en) |
DK (1) | DK141187B (en) |
FR (1) | FR2179823B1 (en) |
GB (1) | GB1401383A (en) |
HK (1) | HK21279A (en) |
IL (1) | IL41821A (en) |
IT (1) | IT982612B (en) |
NL (1) | NL152713B (en) |
NO (1) | NO130552C (en) |
PL (1) | PL85053B1 (en) |
RO (1) | RO67219A (en) |
SE (1) | SE394161B (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3388370A (en) * | 1966-04-14 | 1968-06-11 | Minnesota Mining & Mfg | Solderless connector for insulated wires |
US3576518A (en) * | 1968-11-07 | 1971-04-27 | Minnesota Mining & Mfg | Solderless connector for insulated wires |
US3617983A (en) * | 1969-03-07 | 1971-11-02 | Amp Inc | Terminal junction interconnection system |
DK137877B (en) * | 1969-05-12 | 1978-05-22 | Minnesota Mining & Mfg | Multiple cable splice module. |
US3634605A (en) * | 1970-10-09 | 1972-01-11 | Amp Inc | Connecting device |
-
1973
- 1973-03-15 CA CA166,177A patent/CA981352A/en not_active Expired
- 1973-03-19 IL IL41821A patent/IL41821A/en unknown
- 1973-03-20 NO NO1126/73A patent/NO130552C/no unknown
- 1973-03-20 GB GB1330773A patent/GB1401383A/en not_active Expired
- 1973-03-22 DE DE2314330A patent/DE2314330C2/en not_active Expired
- 1973-03-22 IT IT22018/73A patent/IT982612B/en active
- 1973-03-26 CH CH432473A patent/CH550492A/en not_active IP Right Cessation
- 1973-04-04 NL NL737304666A patent/NL152713B/en not_active IP Right Cessation
- 1973-04-05 PL PL1973161724A patent/PL85053B1/pl unknown
- 1973-04-06 DD DD169992A patent/DD107816A5/xx unknown
- 1973-04-06 DK DK186573AA patent/DK141187B/en unknown
- 1973-04-06 FR FR7312448A patent/FR2179823B1/fr not_active Expired
- 1973-04-06 RO RO7374392A patent/RO67219A/en unknown
- 1973-04-06 SE SE7304882A patent/SE394161B/en unknown
- 1973-04-07 BG BG7323231A patent/BG26824A3/xx unknown
- 1973-04-09 JP JP4031373A patent/JPS5550349B2/ja not_active Expired
- 1973-04-09 CS CS2514A patent/CS168647B2/cs unknown
- 1973-04-09 AR AR247456A patent/AR194881A1/en active
-
1979
- 1979-03-29 HK HK212/79A patent/HK21279A/en unknown
Also Published As
Publication number | Publication date |
---|---|
FR2179823A1 (en) | 1973-11-23 |
JPS4915979A (en) | 1974-02-12 |
DK141187C (en) | 1980-07-07 |
DK141187B (en) | 1980-01-28 |
IL41821A (en) | 1976-02-29 |
DE2314330C2 (en) | 1983-07-28 |
IL41821A0 (en) | 1973-05-31 |
IT982612B (en) | 1974-10-21 |
RO67219A (en) | 1980-03-15 |
FR2179823B1 (en) | 1977-12-30 |
NL7304666A (en) | 1973-10-10 |
HK21279A (en) | 1979-04-06 |
DD107816B2 (en) | 1974-08-12 |
CH550492A (en) | 1974-06-14 |
DE2314330A1 (en) | 1973-10-18 |
AR194881A1 (en) | 1973-08-24 |
CA981352A (en) | 1976-01-06 |
JPS5550349B2 (en) | 1980-12-17 |
SE394161B (en) | 1977-06-06 |
BG26824A3 (en) | 1979-06-12 |
GB1401383A (en) | 1975-07-16 |
DD107816A5 (en) | 1974-08-12 |
NL152713B (en) | 1977-03-15 |
PL85053B1 (en) | 1976-04-30 |
CS168647B2 (en) | 1976-06-29 |
NO130552C (en) | 1975-01-08 |
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