CH227925A
(en )
1943-07-15
Process for the production of erasable photographs.
CH204534A
(en )
1939-05-15
Process for the production of photographic layers.
CH160353A
(en )
1933-02-28
Process for the production of pore-free and void-free cast blocks with a fine-grain structure.
CH160123A
(en )
1933-02-28
Process for the production of structures with cavities.
CH167511A
(en )
1934-02-28
Process for the production of 3-methylalpentane.
CA319827A
(en )
1932-02-16
Mould making method
CH166277A
(en )
1933-12-31
Process for the production of the metal links of zippers.
AT152568B
(en )
1938-02-25
Process for the production of highly resistant core-condensed resin bodies.
CA319593A
(en )
1932-02-09
Concrete moulding method
AT140659B
(en )
1935-02-25
Process for the production of yeast with laxative properties.
SU45404A1
(en )
1935-12-31
The method of manufacturing plastic
CH167574A
(en )
1934-02-28
Process for the production of clear waterproof films.
CA319097A
(en )
1932-01-19
Moulding method
AT144710B
(en )
1936-02-25
Device for the production of picture sound films.
AT156074B
(en )
1939-05-10
Process for the production of steels with a certain grain size.
FR786049A
(en )
1935-08-24
Method and device for the production of imitation leather
CA327222A
(en )
1932-11-01
Production of casting moulds of rubber
CH231097A
(en )
1944-02-29
Process for the production of metal blocks in metal molds.
ES4133Y
(en )
1936-05-16
Mold for the manufacture of mosaics.
GR3993B
(en )
1933-01-11
METHOD FOR THE APPEARANCE OF POSITIVE DIAZOTYPES.
CA324562A
(en )
1932-07-26
Method of moulding furniture
CH175343A
(en )
1935-02-28
Process for the production of phenanthrene.
CA325359A
(en )
1932-08-23
Pipe moulding method
AT140837B
(en )
1935-02-25
Process for the production and separation of salts with double conversion with base exchangers.
CH167440A
(en )
1934-02-28
Process for the production of road building materials.