CH78112A
(en )
1918-11-01
Process for the production of a preparation for making shoe soles durable
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH75657A
(en )
1917-09-01
Process for the production of a sole leather substitute material
CH70142A
(en )
1915-09-01
Process for the production of footwear heels
CH77654A
(en )
1918-05-01
Process for the manufacture of shoe uppers
CH77251A
(en )
1918-03-16
Process for the manufacture of a leather substitute
CH75777A
(en )
1918-01-16
Process for the manufacture of a leather substitute
CH73106A
(en )
1916-10-02
Process for the production of a leather substitute
CH77364A
(en )
1918-04-01
Process for the production of wooden heels
CH77112A
(en )
1918-03-01
Process for making shoes
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
CH68668A
(en )
1915-04-01
Process for the production of artificial sole leather
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH75774A
(en )
1918-02-01
process for the production of a soap preparation
CH78282A
(en )
1918-07-01
Process for the production of a tanning agent
CH78797A
(en )
1918-09-02
Process for the production of a tanning agent
CH79015A
(en )
1918-10-01
Process for the production of a tanning agent
CH79130A
(en )
1918-10-01
Process for the production of a tanning agent
CH77238A
(en )
1918-03-16
Process for the production of shoe soles from fabric made waterproof by means of celluloid
CH79494A
(en )
1918-12-02
Process for the manufacture of a leather substitute
CH82060A
(en )
1919-08-16
Process for the manufacture of a leather substitute
CH75470A
(en )
1918-01-02
Process for the production of mountain shoe nails