CH73729A
(en )
1916-11-16
Process for the production of wires from tungsten
CH56638A
(en )
1912-11-16
Process for the production of tungsten from tungstic acid
CH74792A
(en )
1917-04-16
Process for the production of tungsten wires
CH54885A
(en )
1912-07-01
Process for the manufacture of rigid wire mesh from wire screws
CH63569A
(en )
1914-02-02
Process for the preparation of acetaldehyde from acetylene
CH65921A
(en )
1914-07-16
Process for the preparation of acetaldehyde from acetylene
CH65231A
(en )
1914-06-01
Process for the production of wire, consisting of tungsten or a tungsten alloy
CH69818A
(en )
1915-07-16
Process for the production of conical springs from steel strips
CH91932A
(en )
1921-12-01
Process for the production of shaped pieces from metal carbides of the tungsten group.
CH54331A
(en )
1912-05-17
Process for the production of tubes from low-smoke gunpowder
CH65736A
(en )
1914-07-01
Process for the preparation of acetperacid from acetaldehyde
CH71806A
(en )
1916-02-16
Process for the preparation of acetaldehyde from acetylene
CH63362A
(en )
1914-02-02
Process for the production of shaped pieces from common salt
CH68825A
(en )
1915-04-16
Process for the production of shaped pieces from milk powder
AT88396B
(en )
1922-05-10
Process for the production of iron-free hard alloys.
CH70153A
(en )
1915-09-01
Process for the preparation of acetaldehyde from acetylene
AT57722B
(en )
1913-02-25
Process for the production of caramel from carbohydrates.
CH68992A
(en )
1915-05-17
Process for the preparation of protocatechialdehyde from piperonal
CH68831A
(en )
1915-04-16
Process for the production of borofluorotassium
AT82991B
(en )
1921-02-25
Process for the production of hydrogen.
CH66325A
(en )
1914-09-01
Process for the preparation of benzyl acetate from benzyl chloride
CH71651A
(en )
1916-02-01
Process for the preparation of acetaldehyde from acetylene
CH52438A
(en )
1911-11-16
Process for the production of shaped pieces from cellulose acetate
CH63328A
(en )
1914-01-16
Process for the production of artificial structures from copper oxide ammonia cellulose solution
AT63610B
(en )
1914-02-25
Process for the production of hydrastinine from berberine.