FR42548E
(en )
1933-08-04
Manufacturing process of disinfectant action soap
FR721280A
(en )
1932-03-01
Light-sensitive photographic product and its manufacturing process
FR800855A
(en )
1936-07-21
Refractory product and its manufacturing process
BE382008A
(en )
1931-09-30
Light-sensitive photographic product and its manufacturing process
FR718748A
(en )
1932-01-28
Manufacturing process of shoe lasts and machines allowing the realization
FR690647A
(en )
1930-09-24
Light-sensitive photographic material and its manufacturing process
FR690330A
(en )
1930-09-18
Emulsion manufacturing process
FR795181A
(en )
1936-03-07
Photographic product and its manufacturing process
FR863743A
(en )
1941-04-08
Manufacturing process of photographic products and resulting products
FR677670A
(en )
1930-03-13
Photographic disc and its manufacturing process
FR49315E
(en )
1939-02-17
Photographic product and process
FR685656A
(en )
1930-07-16
Cinematographic film and its manufacturing process
FR740468A
(en )
1933-01-26
Photographic sensitive paper and its manufacturing process
FR664261A
(en )
1929-08-31
Emulsion manufacturing process
FR697562A
(en )
1931-01-20
Cinematographic film and its manufacturing process
FR701440A
(en )
1931-03-16
Combined cinematographic and sound film and its manufacturing process
FR717885A
(en )
1932-01-15
Camera bellows and its manufacturing process
FR726864A
(en )
1932-06-04
New age and its manufacturing process
FR695746A
(en )
1930-12-19
Sound film and its manufacturing process
FR709552A
(en )
1931-08-11
Film reel and its manufacturing process
FR898550A
(en )
1945-04-25
Chew product and its manufacturing process
FR755953A
(en )
1933-12-02
Cellulose film and its manufacturing process
FR716953A
(en )
1931-12-30
Dentures and their manufacturing process
FR737958A
(en )
1932-12-19
Doll and its manufacturing process
FR734922A
(en )
1932-10-29
Manufacturing process for new artificial materials