CH80901A
(en )
1919-04-16
Process for the production of hollow bodies and hollow bodies produced by this method
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
CH79368A
(en )
1918-11-01
Process for the production of conical hollow bodies from sheet metal
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH77692A
(en )
1919-02-01
Process for the production of hollow bodies and coatings of any shape
CH56308A
(en )
1912-11-01
Process for the production of quartz hollow bodies
CH78971A
(en )
1918-09-16
Process for the production of spur and helical gears
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH75457A
(en )
1916-12-17
Process for the production of stamps and stamps produced by the process
AT87482B
(en )
1922-02-25
Process for the production of asbestos slate and the like.
CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
AT76380B
(en )
1919-05-10
Process and system for the production of pre-doughs.
CH80665A
(en )
1919-09-01
Process for the production of an artificial stone
AT96521B
(en )
1924-04-10
Process and apparatus for the production of pure furfural.
CH80833A
(en )
1919-04-01
Process for the production of sodium cyanate
CH57292A
(en )
1913-01-02
Process for the production of bodies for sulphurizing
CH79496A
(en )
1918-12-02
Method and device for the production of hollow bodies from paper stock
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
CH75980A
(en )
1918-03-16
Process for the production of artificial leather
CH69478A
(en )
1915-06-16
Process for the production of hollow bodies with inner lining