CH79830A
(en )
1919-01-16
Process for preventing the formation of cooking foam graphite in the production of silicon-containing cast iron alloys
CH101173A
(en )
1923-09-01
Process for the production of primers.
AT108103B
(en )
1927-11-25
Process for the production of moldings from metals.
CH79954A
(en )
1919-01-16
Process for the production of coffee substitutes
CH74962A
(en )
1917-05-01
Process for the production of gray cast iron
AT98961B
(en )
1925-01-10
Process for the production of alloys of copper with easily fusible components.
CH80422A
(en )
1919-03-01
Process for the production of metal bodies
AT91345B
(en )
1923-02-26
Process for the production of iron leather.
DK30529C
(en )
1922-10-30
Procedure for the production of molding sand for core pieces for iron and metal foundries.
AT108109B
(en )
1927-11-25
Process for the manufacture of low-sulfur cast iron.
CH79801A
(en )
1919-01-16
Process for the production of solid sodium percarbonate
CH80094A
(en )
1919-02-01
Process for the production of sodium percarbonate
CH88567A
(en )
1921-03-01
Process for the production of trinitroresorzin.
AT88396B
(en )
1922-05-10
Process for the production of iron-free hard alloys.
CA204631A
(en )
1920-10-05
Process for improving the properties of ingots
CH80235A
(en )
1919-07-01
Process for the production of shoe wax
CH213645A
(en )
1941-02-28
Process for the production of castings from cast iron and casting produced according to this process.
CH67108A
(en )
1914-11-02
Process for the production of magnesium perborate
CH68595A
(en )
1915-04-01
Process for the production of magnesium perborate
CH70113A
(en )
1915-08-16
Process for the manufacture of wrought iron articulated kettles
CH80238A
(en )
1919-02-17
Process for the production of rubber-like compositions
CH79489A
(en )
1918-12-02
Process for the production of copper compounds
CH160222A
(en )
1933-02-28
Process for the production of castings from alloys.
CH73801A
(en )
1916-12-01
Process for the production of graphite in colloidal form
FR544761A
(en )
1922-09-29
Advanced furnace for the production of alloys