CH77238A
(en )
1918-03-16
Process for the production of shoe soles from fabric made waterproof by means of celluloid
CH77654A
(en )
1918-05-01
Process for the manufacture of shoe uppers
CH75546A
(en )
1917-08-16
Process for the production of shoe soles from leather replacement material
CH75980A
(en )
1918-03-16
Process for the production of artificial leather
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
CH77112A
(en )
1918-03-01
Process for making shoes
CH81317A
(en )
1919-06-02
Process for the production of leather
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH68668A
(en )
1915-04-01
Process for the production of artificial sole leather
CH75657A
(en )
1917-09-01
Process for the production of a sole leather substitute material
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
AT91349B
(en )
1923-02-26
Process for the production of leather.
CH76930A
(en )
1918-02-16
Method of making slippers
CH70142A
(en )
1915-09-01
Process for the production of footwear heels
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH79635A
(en )
1918-12-16
Flat structure made of leather for the manufacture of shoes
CH71810A
(en )
1916-02-16
Process for the production of artificial leather
CH78112A
(en )
1918-11-01
Process for the production of a preparation for making shoe soles durable
CH77364A
(en )
1918-04-01
Process for the production of wooden heels
CH56351A
(en )
1912-11-01
Process for the manufacture of footwear with an insole
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH81781A
(en )
1919-07-16
Process for the production of full, flexible iron leather