CH64853A
(en )
1914-05-01
Process for tanning animal hides
CH59429A
(en )
1913-05-02
Process for tanning animal hides
CH66045A
(en )
1914-08-01
Process for tanning animal hides
AT80067B
(en )
1920-02-25
Process for tanning animal hides.
CH59169A
(en )
1913-05-02
Process for tanning rabbit fur
CH79808A
(en )
1919-05-16
Process for tanning animal hides
CH66328A
(en )
1914-10-16
Process for liming hides
CH72381A
(en )
1916-05-01
Process for pickling pelts
CH57550A
(en )
1913-01-16
Method for hardening and waterproofing animal hides
FR23747E
(en )
1921-12-15
Process for tanning animal skins
CH61927A
(en )
1913-10-16
Method of tanning hides with the help of iron salts
FR476416A
(en )
1915-08-03
Method for measuring hides and skins
AT63555B
(en )
1914-02-25
Process for the aftertreatment of iron-tanned leather.
FR448321A
(en )
1913-01-28
Process for tanning hides
CH61744A
(en )
1913-10-16
Process for hardening metals
CH57775A
(en )
1913-02-01
Process for dehairing and cleaning hides and skins
CH63135A
(en )
1914-01-16
Method and device for tanning hides and skins
CH77117A
(en )
1918-03-01
Method for drying patent leather
CH77378A
(en )
1918-04-01
Method for drying patent leather
CH76200A
(en )
1917-11-16
Process for retanning glacé leather
CH58422A
(en )
1913-03-01
Process for treating calcium cyanamide
CH74848A
(en )
1917-04-16
Process for the production of leather by means of iron salts
CH74849A
(en )
1917-04-16
Process for the production of leather by means of iron salts
CH75618A
(en )
1917-09-01
Process for the production of leather by means of iron salts
CH79743A
(en )
1919-01-02
Process for the production of leather by means of iron salts