CH61689A
(en )
1913-10-01
Process for the production of elastic toe caps for shoes and boots
CH60521A
(en )
1913-07-16
Process for the manufacture of footwear
CH56851A
(en )
1912-12-02
Process for the production of shoe polish
CH70142A
(en )
1915-09-01
Process for the production of footwear heels
CH68668A
(en )
1915-04-01
Process for the production of artificial sole leather
CH56351A
(en )
1912-11-01
Process for the manufacture of footwear with an insole
CH65117A
(en )
1914-06-01
Method and device for the production of footwear soles
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
CH55542A
(en )
1912-08-16
Process for the preparation of allophanoic acid chloride
CH68920A
(en )
1915-05-01
Process for the production of artificial leather
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH66508A
(en )
1914-09-16
Process for the production of shoe wax
CH50544A
(en )
1911-06-01
Process for the production of sole leather and upper leather
CH51959A
(en )
1911-10-02
Process for the production of artificial sole leather and similar products
CH58394A
(en )
1913-03-17
Process for the production of footwear and footwear produced by this process
CH62571A
(en )
1913-12-01
Process and machine for the manufacture of footwear
CH61931A
(en )
1913-10-16
Process for the production of technically usable rubber substitute
CH77654A
(en )
1918-05-01
Process for the manufacture of shoe uppers
CH65547A
(en )
1914-06-16
Process for the production of leather fats
CH64917A
(en )
1914-05-01
Process and machine for the manufacture of footwear
CH68822A
(en )
1915-04-16
Process and machine for the manufacture of footwear
CH67258A
(en )
1914-11-16
Process for the production of artificial sponge
AT63556B
(en )
1914-02-25
Process for the production of artificial sponge.
CH66503A
(en )
1914-09-16
Process for the production of calcium cyanamide