CH214631A
(en )
1941-05-15
Process for the production of diazotypes.
CH224657A
(en )
1942-12-15
Process for the production of structures from polyurethanes.
CH214110A
(en )
1941-03-31
Process for the preparation of p- (2,4-dimethylamino-1,3,5-triazinyl- (6)) -aminophenyl-arsonic acid.
CH213263A
(en )
1941-01-31
Process for the production of printing forms and intermediate forms therefor.
CH212638A
(en )
1940-12-15
Process for the production of hydroxylammonium sulfate.
CH203087A
(en )
1939-02-28
Mold for the manufacture of concrete pipes.
CH231881A
(en )
1944-04-30
Process for the production of aluminum sulfate from aluminum ores.
GR7759B
(en )
1938-11-05
METHOD OF HARDENING OF IRONS, IRON STEEL OR STEEL OBJECTS OF ALL KINDS.
CH208787A
(en )
1940-02-29
Process for the production of an aluminum-zinc alloy.
CH214409A
(en )
1941-04-30
Verfahren zur Herstellung von niedrigpolymeren Polystyrolen.
CH224643A
(en )
1942-12-15
Process for the preparation of p, p'-di-aminophenyl-pyridyl-sulfone.
CH221835A
(en )
1942-06-15
Process for the production of fine-grain, light-sensitive systems.
CH182885A
(en )
1936-02-29
Process for the production of items made of malleable cast iron.
DK59194C
(en )
1941-11-10
Hearing or speech head for longitudinal magnetization of band-shaped tone carriers according to the reception method.
CH236716A
(en )
1945-02-28
Process for the production of x-chloro-e-methyl-e-caprolactam.
CH224213A
(en )
1942-11-15
Process for the production of polyether.
ES144577A1
(en )
1939-12-01
A process for the manufacture of crude iron and steel.
ES144127A1
(en )
1938-07-16
A process for the manufacture of alloys, especially of ferro-alloys or stainless steels.
ES147279A1
(en )
1941-03-01
A process for the manufacture of alloys, especially ferroalloys or stainless steels.
AT121535B
(en )
1931-02-25
Process for the extraction of metals from their oxides, especially low-carbon iron.
GR7714B
(en )
1938-10-17
METHOD OF HARDENING COMMON IRON BY CHEMICAL COMPOUNDS.
CH213648A
(en )
1941-02-28
Process for the production of castings from aluminum-silicon alloys, in particular permanent mold castings.
CH231060A
(en )
1944-02-29
Process for the preparation of 4-amino-benzenesulfonacetamide.
ES146373A1
(en )
1943-03-01
Procedure for the production of solid dyes.
ES145705A1
(en )
1940-10-16
Procedure for the production of solid dyes.