FR632002A
(en )
1927-12-30
Improvements in methods and apparatus for making grooves in pieces of leather for footwear
FR630563A
(en )
1927-12-05
Improvement in dyeing processes and apparatus
FR688270A
(en )
1930-08-21
Method and apparatus for clamping molds and rotating parts
FR631382A
(en )
1927-12-19
Improvements in electrolysis processes and apparatus
FR640594A
(en )
1928-07-17
Process for folding the edges of pieces of leather and apparatus for making it
FR746197A
(en )
1933-05-23
Improvements in methods and apparatus for the treatment of molten materials
FR764454A
(en )
1934-05-22
Method and apparatus for treating pavements and other smooth surfaces
FR694436A
(en )
1930-12-03
Improvements in apparatus and methods for treating carbonaceous and other materials
FR725090A
(en )
1932-05-07
Process and apparatus for the treatment of green bananas or other similar fruits
FR638661A
(en )
1928-05-31
Improvements to methods and apparatus for radiovision
FR638959A
(en )
1928-06-08
Improvements to shoe soles and to methods and devices for establishing them
FR656733A
(en )
1929-05-13
Method and apparatus for molding ceramic parts
FR663515A
(en )
1929-08-22
Improvements in processes and equipment for the treatment of heavy hydrocarbons
FR770178A
(en )
1934-09-10
Improvements in materials and processes for the treatment of hides and skins
FR730350A
(en )
1932-08-11
Process and agents for preserving skins
FR37243E
(en )
1930-11-03
Improvement in apparatus and processes for the concentration of minerals
FR613557A
(en )
1926-11-24
Improvements in methods and apparatus for testing magnetic bodies
FR639999A
(en )
1928-07-03
Improvements in processes and apparatus for the manufacture of rubber parts and other elastic materials
FR634553A
(en )
1928-02-20
Improvement in jewelry with removable stones
FR592025A
(en )
1925-07-22
Process for degreasing hides and leather
FR696534A
(en )
1930-12-31
Method and apparatus for tanning hides and the like
FR648499A
(en )
1928-12-10
Process and machine for finishing the edges of certain pieces of leather used in shoemaking and other industries
FR635227A
(en )
1928-03-10
Process for inflating and refining leather in tanning
FR602389A
(en )
1926-03-17
Process for activating the filtering of coffee and apparatus for using this process
FR653808A
(en )
1929-03-28
Improvements to processes and apparatus for treating ores or other metallic compounds