CH52852A
(en )
1912-01-02
Process for making clear quartz articles
CH52851A
(en )
1912-01-02
Process for making clear quartz articles
CH51815A
(en )
1911-09-16
Process for the manufacture of shaped articles
CH65639A
(en )
1914-07-01
Process for making sacks
CH63516A
(en )
1914-02-02
Process for making clear quartz glass articles
CH53335A
(en )
1912-02-01
Process for the production of hydroquinine
CH70774A
(en )
1915-11-01
Process for making rubber articles
CH55315A
(en )
1912-08-01
Process for the production of road surfaces
CH56308A
(en )
1912-11-01
Process for the production of quartz hollow bodies
CH54358A
(en )
1912-05-17
Process for the production of melt products
CH55514A
(en )
1912-08-16
Process for the production of vitreous bodies
CH50536A
(en )
1911-06-01
Process for the manufacture of filters
CH53724A
(en )
1912-04-01
Process for facilitating the shaping of softened quartz mass
AT48394B
(en )
1911-06-10
Process for the production of chain vertebrae.
CH57776A
(en )
1913-02-01
Process for the production of printing forms
CH57546A
(en )
1913-01-16
Process for the production of size
CH53033A
(en )
1912-01-16
Process for the production of engobed machine bricks
AT54035B
(en )
1912-06-25
Process for the production of strips of fastening pins.
CH52115A
(en )
1911-11-01
Process for the production of celluloid-like masses
CH72174A
(en )
1916-04-17
Process for the production of enamels
CH56992A
(en )
1912-12-02
Process for replicating stained glass
CH52472A
(en )
1911-11-16
Process for the production of filament lamps
CH52690A
(en )
1911-12-16
Process for the manufacture of abrasive cloths
CH52279A
(en )
1911-11-01
Process for the production of tannin extracts
CH66699A
(en )
1914-10-01
Process for the production of frisé goods