CH311961A
(en )
1955-12-15
Process for the manufacture of selenium rectifiers.
CH214631A
(en )
1941-05-15
Process for the production of diazotypes.
CH260424A
(en )
1949-03-15
Process for the production of selenium rectifiers and selenium rectifiers obtained by this process.
CH203162A
(en )
1939-02-28
Process for the production of diazotypes.
CH224657A
(en )
1942-12-15
Process for the production of structures from polyurethanes.
CH214020A
(en )
1941-03-31
Process for the manufacture of selenium rectifiers.
CH210597A
(en )
1940-07-31
Process for the production of ethers from alkylolamines.
CH224663A
(en )
1942-12-15
Process for the production of grease- and watertight containers from cellulose-containing material
CH219953A
(en )
1942-03-15
Process for making colored photographic material.
CH167616A
(en )
1934-02-28
Process for the manufacture of objects from wires or strips of magnetizable material.
CH223791A
(en )
1942-10-15
Process for the production of photographic material, in particular for subtractive multicolor images, and photographic material produced by this process.
CH206837A
(en )
1939-08-31
Process for the manufacture of selenium rectifiers.
CH234132A
(en )
1944-09-15
Process for the production of photographic material and material produced by this process.
CH223972A
(en )
1942-10-31
Process for the production of photographic material, in particular for colored images, and photographic material produced by this process.
CH217627A
(en )
1941-10-31
Process for the manufacture of prostheses.
CH204994A
(en )
1939-05-31
Process for the manufacture of oxide cathodes.
AT136675B
(en )
1934-02-26
Process for the manufacture of pesticides.
AT136676B
(en )
1934-02-26
Process for the manufacture of pesticides.
CH231881A
(en )
1944-04-30
Process for the production of aluminum sulfate from aluminum ores.
CH212862A
(en )
1940-12-31
Process for the production of structures from protein substances.
AT126944B
(en )
1932-02-25
Process for the production of capacity areas.
AT121544B
(en )
1931-02-25
Process for the manufacture of fire-resistant building material.
AT157961B
(en )
1940-02-26
Process for the manufacture of products from curable synthetic resins.
CH175453A
(en )
1935-02-28
Process for the production of wire bodies.
CH207469A
(en )
1939-11-15
Process for the manufacture of surface-colored road surfacing or other building material.