DK29930C
(en )
1922-07-17
Procedure for tanning animal skins.
DK24190C
(en )
1919-03-10
Procedure for Tanning Animal Skins.
DK26286C
(en )
1920-07-19
Procedure for tanning animal skins.
DK29206C
(en )
1922-01-23
Procedure for Tanning Animal Skins.
DK18578C
(en )
1914-03-16
Procedure for Tanning Animal Skins.
DK19154C
(en )
1914-08-24
Procedure for Tanning Animal Skins.
DK26787C
(en )
1920-10-25
Procedure for tanning animal skins.
DK26802C
(en )
1920-10-25
Procedure for tanning animal skins.
DK16843C
(en )
1913-01-06
Procedure for Tanning Animal Skins.
DK28712C
(en )
1921-10-31
Procedure for tanning animal skins.
DK28174C
(en )
1921-08-15
Procedure for Tanning Animal Skins.
ES63404A1
(en )
1916-12-16
Procedure for tanning.
DK22268C
(en )
1917-07-16
Procedure for drying patent leather.
DK22269C
(en )
1917-07-16
Procedure for drying patent leather and the like.
DK24841C
(en )
1919-08-11
Procedure for the manufacture of flexible, suitable for storage, tanned leather.
DK24415C
(en )
1919-04-22
Procedure for tanning hides and skins.
DK22739C
(en )
1917-12-31
Procedure for tanning leather using iron salts.
DK24581C
(en )
1919-05-26
Procedure for Neutralization of Chrome Leather.
DK24698C
(en )
1919-06-30
Procedure for tanning hides and skins.
DK29205C
(en )
1922-01-23
Procedure for the manufacture of tanning substances.
DK28548C
(en )
1921-10-03
Procedure for the manufacture of tanning substances.
DK30740C
(en )
1922-11-20
Procedure for the manufacture of tanning substances.
DK26073C
(en )
1920-06-07
Apparatus for tanning hides.
DK16274C
(en )
1912-08-05
Procedure for tanning whale skins, fish skins and the like.
DK16273C
(en )
1912-08-05
Procedure for tanning whale skins, fish skins and the like.