CH65431A
(en )
1914-06-16
Process for the production of filament lamps
CH52472A
(en )
1911-11-16
Process for the production of filament lamps
CH59749A
(en )
1913-06-02
Process for manufacturing incandescent mantles
CH74792A
(en )
1917-04-16
Process for the production of tungsten wires
CH80466A
(en )
1919-03-01
Process for the manufacture of tungsten incandescent lamps
CH57546A
(en )
1913-01-16
Process for the production of size
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
CH55344A
(en )
1912-08-01
Process for the production of artificial threads
CH53936A
(en )
1912-04-16
Process for the production of cellulose threads
CH57979A
(en )
1913-02-17
Process for the production of hydrogen
CH57533A
(en )
1913-01-16
Process for the production of hydrogen
CH55389A
(en )
1912-08-16
Process for the production of cartridge cases
CH70971A
(en )
1915-11-16
Process for the production of incandescent bodies for hanging incandescent light
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH63365A
(en )
1914-01-16
Process for the production of nitrocellulose
CH62314A
(en )
1913-11-17
Process for the production of viscose silk
CH63494A
(en )
1914-02-02
Process for the production of components
CH48516A
(en )
1910-11-01
Process for the production of gas incandescent light bulbs
CH72174A
(en )
1916-04-17
Process for the production of enamels
CH68153A
(en )
1915-02-16
Process for the production of fuel
CH55914A
(en )
1912-09-16
Process for the manufacture of feathered fabrics
CH66969A
(en )
1914-11-02
Process for the production of glass tubes
CH68327A
(en )
1915-03-01
Process for the production of dichloro-o-cresyl carbonate
CH54334A
(en )
1912-05-17
Process for the production of synthetic wood
CH57742A
(en )
1913-02-01
Process for the production of colored chains