FR1115864A
(en )
1956-04-30
Process for obtaining the hardening of artificial skins or leathers
CH278602A
(en )
1951-10-31
Method of pickling metals and installation for the implementation of this method.
CH82795A
(en )
1919-11-01
Process for the tanning of skins and device for carrying out this process
FR32554E
(en )
1928-02-14
Process of dislodging and preparing hides for tanning
FR493508A
(en )
1919-08-12
Process and installation for the rapid tanning of hides
CH108754A
(en )
1925-03-02
Process for the electrolytic preparation of sodium and apparatus for carrying out this process.
FR489642A
(en )
1919-02-25
Method and apparatus for instant tanning of hides
FR532316A
(en )
1922-02-01
Process for tanning fish skins
FR556024A
(en )
1923-07-10
Tanning process for hides and skins
FR504185A
(en )
1920-06-26
Process and devices for the appretage, fleshing and depilation of skins
CH74230A
(en )
1917-02-01
Process for tanning hides and skins
FR520532A
(en )
1921-06-27
Process for peeling the skins
FR490121A
(en )
1919-04-03
Tanning process for fishing nets
FR518892A
(en )
1921-06-01
Method and device for the treatment of hides of all kinds, in particular during tanning
FR528861A
(en )
1921-11-19
Process for tanning animal skins
FR992623A
(en )
1951-10-22
Process and float for recovering cargo from underwater wrecks
FR466562A
(en )
1914-05-16
Process of preparing hides for tanning (mégissage) and dyeing
FR509497A
(en )
1920-11-10
Process for tanning and impregnating materials
FR504068A
(en )
1920-06-24
Method and apparatus for the treatment of sludge
FR489264A
(en )
1919-01-11
Device for tanning hides
FR519598A
(en )
1921-06-11
Tanning process
FR789104A
(en )
1935-10-23
Water clarification process and installation for the implementation of this process
FR440092A
(en )
1912-07-01
Process for the tanning of fish skins and the like
FR448321A
(en )
1913-01-28
Process for tanning hides
FR486696A
(en )
1918-04-30
Device for the fast and economical tanning of hides