FR519528A
(en )
1921-06-11
Process for the production of economical soaps
FR495987A
(en )
1919-10-23
Manufacturing process of soles for shoes
CH77915A
(en )
1918-11-01
Manufacturing process of soles for shoes
FR489444A
(en )
1919-02-03
Process for making shoes
CH75963A
(en )
1919-08-01
Process for the production of waterproof shoes
FR491997A
(en )
1919-06-24
Advanced resin manufacturing process
CH76429A
(en )
1917-12-17
Shoe sole and method for its manufacture
FR478969A
(en )
1916-01-26
Process for the manufacture of shoe heels
FR20163E
(en )
1917-01-25
Galoshes manufacturing process
FR489354A
(en )
1919-01-27
Economical manufacturing process for slipper soles
FR23806E
(en )
1921-12-30
Economical manufacturing process for slipper soles
FR468287A
(en )
1914-07-02
Manufacturing process of artificial leather for soles
FR524751A
(en )
1921-09-10
Process for the manufacture of cartridge cases
FR495578A
(en )
1919-10-11
Process for the manufacture of superphosphates
FR514956A
(en )
1921-03-22
Process for the production of caramel
FR499005A
(en )
1920-01-29
Process and machine for the manufacture of return shoes
FR496194A
(en )
1919-10-29
Process for the manufacture of hydrochlorides
FR513143A
(en )
1921-02-08
Manufacturing process of hinges
FR530751A
(en )
1921-12-31
Manufacturing process for tanning materials
FR494265A
(en )
1919-09-04
Footwear manufacturing process
FR524981A
(en )
1921-09-13
Manufacturing process for cartridge cases
FR483818A
(en )
1917-08-14
Footwear manufacturing process
FR519789A
(en )
1921-06-15
Process for the production of leather
FR488454A
(en )
1918-10-15
Manufacturing process of tires for tires
FR478812A
(en )
1916-01-12
Advanced process for making shoes