CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH75980A
(en )
1918-03-16
Process for the production of artificial leather
CH77110A
(en )
1918-08-01
Process for the production of artificial leather
CH77381A
(en )
1918-09-02
Process for the production of artificial leather
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
CH77364A
(en )
1918-04-01
Process for the production of wooden heels
CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
CH80833A
(en )
1919-04-01
Process for the production of sodium cyanate
AT91345B
(en )
1923-02-26
Process for the production of iron leather.
CH79146A
(en )
1918-10-01
Method of making briquettes
CH81781A
(en )
1919-07-16
Process for the production of full, flexible iron leather
CH81317A
(en )
1919-06-02
Process for the production of leather
CH80665A
(en )
1919-09-01
Process for the production of an artificial stone
CH79651A
(en )
1918-12-16
Facility for the production of calcium carbide
CH81325A
(en )
1919-06-02
Process for the production of light, elastic objects for play purposes
AT96138B
(en )
1924-02-25
Process for the production of fuel.
CH77919A
(en )
1918-06-01
Process for the production of footwear running parts
CH82062A
(en )
1919-08-16
Process for the production of leather substitutes
CH79494A
(en )
1918-12-02
Process for the manufacture of a leather substitute
CH82060A
(en )
1919-08-16
Process for the manufacture of a leather substitute
CH80422A
(en )
1919-03-01
Process for the production of metal bodies