CH67460A
(en )
1914-12-01
Process for impregnating wood
CH69807A
(en )
1915-07-16
Process for impregnating wood
CH71231A
(en )
1915-12-16
Process for impregnating wood
CH56652A
(en )
1912-11-16
Process for impregnating long timber
CH45814A
(en )
1909-12-16
Process for impregnating wood
CH73218A
(en )
1916-09-01
Process for preserving wood
CH63647A
(en )
1914-02-02
Process for decorating wood with inlays
CH49463A
(en )
1911-04-01
Method of steaming wood
CH48253A
(en )
1910-10-01
Process for preserving wood
CH66170A
(en )
1914-08-17
Process for preserving the wooden structural parts of buildings of all types, especially those with a framework
CH41634A
(en )
1908-11-02
Process for staining wood
CH59952A
(en )
1913-06-16
Process for drying materials such as B. wood, leather etc.
CH65740A
(en )
1914-07-16
Process for drying patent leather
CH78284A
(en )
1918-07-01
Process for compacting wood
CH41633A
(en )
1908-11-02
Process for preserving wood by impregnation
CH54192A
(en )
1912-05-01
Process for cleaning buildings
CH68971A
(en )
1915-05-01
Process for impregnating artificial straw
CH66328A
(en )
1914-10-16
Process for liming hides
CH67915A
(en )
1915-02-01
Process for softening water
CH67259A
(en )
1914-11-16
Method of waterproofing paper
CH66122A
(en )
1914-11-16
Process for bleaching tobacco cover sheets
AT63615B
(en )
1914-02-25
Shaft-shaped furnace for charring wood.
CH77117A
(en )
1918-03-01
Method for drying patent leather
CH77378A
(en )
1918-04-01
Method for drying patent leather
CH74760A
(en )
1917-04-02
Cleaning house for cleaning workpieces