DK22786C
(en)
|
|
Procedure for tanning leather using iron salts.
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DK22739C
(en)
|
|
Procedure for tanning leather using iron salts.
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DK27668C
(en)
|
|
Procedure for Manufacturing Iron Leather.
|
DK28174C
(en)
|
|
Procedure for Tanning Animal Skins.
|
DK28712C
(en)
|
|
Procedure for tanning animal skins.
|
DK22281C
(en)
|
|
Procedure for the manufacture of leather by tanning with iron salts.
|
DK34002C
(en)
|
|
Tanning Procedure.
|
DK24568C
(en)
|
|
Procedure for Utilization of Leather Waste.
|
DK27682C
(en)
|
|
Procedure for tanning hides.
|
DK27763C
(en)
|
|
Procedure for the manufacture of tanning agents.
|
DK28914C
(en)
|
|
Procedure for Operating Heating Machines.
|
DK22824C
(en)
|
|
Procedure for Treating Unsaturated Hydrocarbons.
|
DK23596C
(en)
|
|
Procedure for Treating Tobacco.
|
DK23013C
(en)
|
|
Device for Footwear.
|
DK29206C
(en)
|
|
Procedure for Tanning Animal Skins.
|
DK24841C
(en)
|
|
Procedure for the manufacture of flexible, suitable for storage, tanned leather.
|
DK23196C
(en)
|
|
Machine for Joining Shoe Parts.
|
DK23451C
(en)
|
|
Machine for Making Emulsions.
|
DK18578C
(en)
|
|
Procedure for Tanning Animal Skins.
|
DK19154C
(en)
|
|
Procedure for Tanning Animal Skins.
|
DK26820C
(en)
|
|
Procedure for Treating Coffee.
|
CH79965A
(en)
|
|
Tanning process
|
DK26073C
(en)
|
|
Apparatus for tanning hides.
|
DK26086C
(en)
|
|
Device for lifeboats.
|
DK24190C
(en)
|
|
Procedure for Tanning Animal Skins.
|