CH216125A
(en )
1941-07-31
Process for the production of erasable photographs.
CH205828A
(en )
1939-06-30
Process for the production of aluminum phthalocyanine.
CH201642A
(en )
1938-12-15
Method of making multicolor images.
CH204534A
(en )
1939-05-15
Process for the production of photographic layers.
AT155623B
(en )
1939-02-25
Method of image production.
SU50016A1
(en )
1936-08-31
Method of making high-refractory bricks
CH189156A
(en )
1937-05-01
Process for the production of security paper.
CH201644A
(en )
1938-12-15
Process for the production of multicolor photographic images.
SU46607A1
(en )
1936-04-30
The method of producing tetra-chlorophthalic acid
CH190548A
(en )
1937-04-30
Disinfection method.
CH182750A
(en )
1936-02-29
Process for the production of white-colored silver images.
AT144751B
(en )
1936-02-25
Method of making roads.
AT148705B
(en )
1937-02-25
Process for making pastries.
CH182873A
(en )
1936-02-29
Process for the production of chrysene.
GR4749B
(en )
1934-06-06
METHOD OF ENRICHMENT OF POOR PYRILOUSITE OREATIONS.
AT148694B
(en )
1937-02-25
Process for the production of compressed yeast.
CH182652A
(en )
1936-02-29
Process for the production of fittings for building purposes.
CH175343A
(en )
1935-02-28
Process for the production of phenanthrene.
AT144664B
(en )
1936-02-25
Method of making detonators.
CH181180A
(en )
1935-12-15
Process for the manufacture of pesticides.
CH175352A
(en )
1935-02-28
Process for the preparation of 2-amino-1-naphthol-8-sulfonic acid.
CH175453A
(en )
1935-02-28
Process for the production of wire bodies.
FI17852A
(en )
1937-12-10
Method of production of reflections
AT152558B
(en )
1938-02-25
Process for the production of dyes.
GR5295B
(en )
1935-05-24
METHOD OF PRODUCTION OF BASIC METAL COLOR COLOR.