CH76711A
(en )
1918-05-16
Process for the production of wire drawing dies
CH74792A
(en )
1917-04-16
Process for the production of tungsten wires
CH76592A
(en )
1918-01-16
Process for the production of fittings
CH75534A
(en )
1917-08-01
Process for the production of etched figures
CH76586A
(en )
1918-01-16
Process for the production of cork boards
CH79939A
(en )
1919-01-16
Process for the production of fibers
CH79967A
(en )
1919-01-16
Process for the production of enamelled everyday objects
CH72948A
(en )
1916-08-01
Process for the production of reversible shoes
CH75333A
(en )
1917-12-01
Process for the production of etched embroidery
CH71918A
(en )
1916-03-01
Process for the production of aluminum hydroxide
CH76779A
(en )
1918-02-01
Process for the production of pressed briquettes
CH74900A
(en )
1917-05-01
Process for the manufacture of pneumatic jackets
AT88396B
(en )
1922-05-10
Process for the production of iron-free hard alloys.
AT88401B
(en )
1922-05-10
Process for the production of zinc-lead paints.
CH76805A
(en )
1918-06-17
process for the production of nutrient pulp
CH75875A
(en )
1917-10-01
Process for the production of potassium persulfate
CH81317A
(en )
1919-06-02
Process for the production of leather
AT87335B
(en )
1922-02-25
Process for the production of an alumina suitable for the purposes of aluminum production.
CH66000A
(en )
1914-08-01
Process for the production of incandescent bodies
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
CH73574A
(en )
1916-10-16
Process for the production of oxygen
CH76096A
(en )
1918-04-01
Process for the production of urea
CH57546A
(en )
1913-01-16
Process for the production of size
CH78790A
(en )
1918-09-02
Process for the production of emulsion for technical purposes
CH72958A
(en )
1916-07-17
Process for the production of sodium percarbonate