FR493748A
(en )
1919-08-20
Piece to shoe the soles of shoes
CH80956A
(en )
1919-04-16
Method for reinforcing the leather outsole of shoes
FR519113A
(en )
1921-06-04
Process for hardening the surface of patent leather
CH77800A
(en )
1918-06-01
Process for protecting the soles of shoes against wear
FR492522A
(en )
1919-07-10
Method and machine for finishing the shoe
CH79170A
(en )
1918-10-16
Removable flexible insole, for shoes
CH81449A
(en )
1919-06-16
Process for the manufacture of a product which can replace leather
FR16108E
(en )
1912-11-20
Chrome tanning process, for the preparation of sole leather
FR440736A
(en )
1912-07-19
Chrome tanning process, for the preparation of sole leather
FR526968A
(en )
1921-10-17
Process for the manufacture of resin-like substances
CH79912A
(en )
1919-06-02
Process for the establishment of reinforced floors
CA184347A
(en )
1918-05-14
Machine for shaping the heel portions of shoe uppers
FR487007A
(en )
1918-05-29
Protective sole for leather shoes
FR489462A
(en )
1919-02-08
Process for producing artificial leather with soles
FR495615A
(en )
1919-10-14
Rubber lining, for shoe soles
FR516943A
(en )
1921-04-28
Process for the extraction of lecithin from its animal or vegetable raw materials
FR496951A
(en )
1919-11-21
Advanced heel system for shoes of all kinds
DK31384C
(en )
1923-03-05
Machine for lacing the upper leather parts of lace-up boots.
FR491869A
(en )
1919-06-20
Shoe sole fitting
CH81781A
(en )
1919-07-16
Process for the production of full, flexible iron leather
FR499005A
(en )
1920-01-29
Process and machine for the manufacture of return shoes
FR490719A
(en )
1919-05-06
Rise for shoe heels
FR509497A
(en )
1920-11-10
Process for tanning and impregnating materials
CH77654A
(en )
1918-05-01
Process for the manufacture of shoe uppers
FR488674A
(en )
1918-10-30
Machine for weaving the soles of espadrilles