FR734556A
(en )
1932-10-24
Improvements to aircraft and their order
FR799382A
(en )
1936-06-11
Improvements to elastic fabrics and their manufacturing method
FR725057A
(en )
1932-05-07
Improvements to tires and their manufacture
FR723921A
(en )
1932-04-18
Improvements to transvestites and stage costumes
BE382299A
(en )
1931-09-30
Improvements to matchbooks and their manufacturing method
FR722392A
(en )
1932-03-16
Improvements to matchbooks and their manufacturing process
FR692006A
(en )
1930-10-29
Improvements to rackets and their manufacturing method
FR722556A
(en )
1932-03-22
Improvements to pigments and their manufacture
FR760544A
(en )
1934-02-24
Improvements to emulsions and their manufacturing process
FR695149A
(en )
1930-12-11
Improvements to window envelopes and their manufacturing method
FR702089A
(en )
1931-03-28
Improvements to metal sheets or sheets and their manufacturing process
FR716981A
(en )
1931-12-30
Improvements to vehicle wheels and their manufacture
FR675873A
(en )
1930-02-15
Improvements to joints and their manufacture
FR598097A
(en )
1925-12-05
Improvements to resistors and their manufacturing method
FR737279A
(en )
1932-12-09
Improvements to vehicle saddles and their manufacture
FR32735E
(en )
1928-02-21
Improvements to electrodes and their manufacturing method
FR647962A
(en )
1928-12-04
Improvements to caps and their manufacture
FR810015A
(en )
1937-03-13
Improvements to bolts and their manufacturing process
FR706481A
(en )
1931-06-24
Improvements to reheating carburetors and chemical carburetors
FR706119A
(en )
1931-06-19
Improvements made to large loom rods
FR44721E
(en )
1935-04-06
Tar-bitumens and their manufacture
FR703990A
(en )
1931-05-08
Improvements to metal propellers and their manufacture
FR703989A
(en )
1931-05-08
Improvements to metal propellers and their manufacture
FR48182E
(en )
1937-11-03
Improvements relating to soaps and their manufacture
FR724584A
(en )
1932-04-29
Improvements in cellulose derivatives and their manufacture