CH74521A
(en )
1917-03-01
Process for the production of outsoles for footwear using pieces of leather waste
CH68668A
(en )
1915-04-01
Process for the production of artificial sole leather
CH75546A
(en )
1917-08-16
Process for the production of shoe soles from leather replacement material
CH70142A
(en )
1915-09-01
Process for the production of footwear heels
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH56351A
(en )
1912-11-01
Process for the manufacture of footwear with an insole
CH75470A
(en )
1918-01-02
Process for the production of mountain shoe nails
CH75471A
(en )
1917-12-17
Process for the production of mountain shoe nails
AT78737B
(en )
1919-10-25
Process for the production of workpiece leather from waste leather.
CH56851A
(en )
1912-12-02
Process for the production of shoe polish
CH77654A
(en )
1918-05-01
Process for the manufacture of shoe uppers
CH66508A
(en )
1914-09-16
Process for the production of shoe wax
CH62141A
(en )
1913-11-01
Process for the production of firm, almost completely waterproof, non-slip leather, in particular sole leather
CH56855A
(en )
1912-11-16
Process for the production of artificial leather
CH65547A
(en )
1914-06-16
Process for the production of leather fats
CH73105A
(en )
1916-08-16
Process for the production of leather substitutes
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH75891A
(en )
1918-01-02
Process for the production of structural parts from calcium or calcium alloys
CH75154A
(en )
1917-06-01
Process for the production of shaped pieces from fodder
CH60521A
(en )
1913-07-16
Process for the manufacture of footwear
CH78372A
(en )
1918-07-16
Process for the manufacture of stamps
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH65117A
(en )
1914-06-01
Method and device for the production of footwear soles
CH70403A
(en )
1915-09-16
Process for the production of wood briquettes
CH71810A
(en )
1916-02-16
Process for the production of artificial leather