CH80701A
(en )
1919-04-01
Waterproof leather substitute and process for its manufacture
CH79810A
(en )
1919-04-16
Waterproof leather substitute and process for its manufacture
CH77380A
(en )
1918-09-02
Waterproof leather substitute and process for its manufacture
CH77895A
(en )
1918-11-01
Briquette and process for its manufacture
CH79342A
(en )
1919-03-17
Process for the production of artificial leather
CH79811A
(en )
1919-01-16
Process for the production of artificial leather
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
CH82059A
(en )
1919-08-16
Process for the production of leather substitutes
CH81781A
(en )
1919-07-16
Process for the production of full, flexible iron leather
CH80239A
(en )
1919-02-17
Process for the production of ebonite
CH78688A
(en )
1918-08-16
Soldering iron and process for its manufacture
CH82939A
(en )
1919-11-01
Briquette and process for its manufacture
CH80810A
(en )
1919-04-16
Process for the manufacture of locking pins
CH80833A
(en )
1919-04-01
Process for the production of sodium cyanate
CH79146A
(en )
1918-10-01
Method of making briquettes
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
AT91345B
(en )
1923-02-26
Process for the production of iron leather.
CH80964A
(en )
1919-09-16
Process for the production of high percentage solutions of calcium nitrate
CH78689A
(en )
1918-08-16
Headed studs and process for their manufacture
CH81317A
(en )
1919-06-02
Process for the production of leather
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
CH80235A
(en )
1919-07-01
Process for the production of shoe wax