AT54816B
(en )
1912-08-10
Process and installation for the continuous tanning of hides.
AT181608B
(en )
1955-04-12
Process for refining metals
CH42528A
(en )
1909-02-01
Method of pickling hides and hides
AT21614B
(en )
1905-10-10
Process for the preparation of acetylene tetrachloride.
AT23795B
(en )
1906-04-10
Process for the refinement of iron ores u. like
AT46581B
(en )
1911-02-25
Method and device for the production of steel or iron.
AT53014B
(en )
1912-04-10
Process for the continuous representation of hydrogen and carbon.
AT27651B
(en )
1907-02-25
Process for hardening copper and copper alloys.
AT23101B
(en )
1906-02-26
Process for absorbing gases or vapors.
AT31929B
(en )
1908-02-25
Process for the production of fusel oil and its components.
CH47091A
(en )
1910-06-01
Process and device for heating work equipment
CA104430A
(en )
1907-04-02
Process of treating hides or skins
AT36344B
(en )
1909-02-25
Process for the production of asbestos cement panels.
GB190524487A
(en )
1906-03-01
Process of Treating Hides
GB190524488A
(en )
1906-05-03
Process of Treating Hides
AT57731B
(en )
1913-02-25
Process for dyeing hair, furs and the like.
AT41028B
(en )
1910-02-25
Process for the production of water-binding hydrocarbons.
CH63135A
(en )
1914-01-16
Method and device for tanning hides and skins
CH71694A
(en )
1916-02-01
Process for soaking hides and skins
AT23563B
(en )
1906-03-26
Apparatus for washing potatoes and the like like
AT24061B
(en )
1906-04-25
Process for the production of carbon dioxide.
CH65141A
(en )
1914-10-16
Method of pickling hides and skins
ES37248A1
(en )
1906-01-01
An improved procedure for treating hides and skins.
CH47436A
(en )
1910-07-01
Leather finishing and process for making the same
CH49306A
(en )
1911-02-01
Process and system for impregnating wood