CH74534A
(en )
1917-08-01
Process for the production of an anti-skid compound
AT82809B
(en )
1921-02-25
Process for the production of an anti-skid compound.
CH76292A
(en )
1917-12-01
Process for the manufacture of objects from concrete
CH72824A
(en )
1916-07-01
Process for the production of nitrogen compounds
CH78372A
(en )
1918-07-16
Process for the manufacture of stamps
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH77547A
(en )
1918-05-01
Process for producing a silicon compound
CH75534A
(en )
1917-08-01
Process for the production of etched figures
CH74900A
(en )
1917-05-01
Process for the manufacture of pneumatic jackets
CH74792A
(en )
1917-04-16
Process for the production of tungsten wires
AT87335B
(en )
1922-02-25
Process for the production of an alumina suitable for the purposes of aluminum production.
CH73443A
(en )
1917-03-16
Process for the production of artificial slates
CH75450A
(en )
1917-08-01
Process for the production of floor wax
CH75240A
(en )
1917-12-01
Process for the production of a highly active decolorizing carbon
CH74200A
(en )
1917-01-16
Process for the production of glazed asbestos-cement boards
CH52023A
(en )
1911-10-02
Process for the production of a tannin-silver-protein compound
AT75645B
(en )
1919-02-25
Process for the production of two or more part porcelain insulators.
CH72958A
(en )
1916-07-17
Process for the production of sodium percarbonate
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
CH64936A
(en )
1914-05-01
Process for the preparation of a durable nitrobenzenediazonium compound
CH67328A
(en )
1914-12-01
Process for the production of a water-soluble silver protein compound
CH54972A
(en )
1912-07-01
Process for the production of plate-shaped objects
CH75544A
(en )
1917-08-16
process for the production of a detergent
CH81778A
(en )
1919-07-16
Process for the preparation of a gallocyanine derivative