SU30834A1
(en )
1933-06-30
The method of molding plastics
SU28325A1
(en )
1932-11-30
The method of obtaining plastics from leather powder
SU49224A1
(en )
1936-08-31
The method of obtaining artificial resin
SU28607A1
(en )
1932-12-31
Nozzle
SU31531A1
(en )
1933-08-31
The method of preparation of thin sections for microscopic studies
SU31699A1
(en )
1933-08-31
Method of immunization of silkworms against pebrine diseases
SU31533A1
(en )
1933-08-31
The method of preparation of solid spirits
SU33300A1
(en )
1933-11-30
The method of obtaining synthetic resin shaped products for the manufacture of plastics
SU31434A1
(en )
1933-08-31
The method of obtaining furfural
SU51860A1
(en )
1937-11-30
The method of manufacture of plastics
SU37336A1
(en )
1934-06-30
The method of preparation of protein plastic from plant casein
SU38322A1
(en )
1934-08-31
The method of preparation of plastics from lignin
SU34141A1
(en )
1934-01-31
The method of vulcanization galoshes
SU31746A1
(en )
1933-08-31
The method of protection against rust salted intestinal product
SU28992A1
(en )
1933-01-31
The method of obtaining the spinning fibers from the shell of the growths of chondrills
SU31532A1
(en )
1933-08-31
The method of obtaining casein glue and polish
SU44169A1
(en )
1935-08-31
The method of obtaining powders
SU32499A1
(en )
1933-10-31
The method of producing azobenzene
SU50211A1
(en )
1937-01-31
The method of manufacturing plastics
SU30781A1
(en )
1933-06-30
Ultramarine production method
SU46660A1
(en )
1936-04-30
The method of obtaining spermaceta
SU36600A1
(en )
1934-05-31
Model for molding
SU34515A1
(en )
1934-02-28
The method of obtaining plastics containing nitrocellulose and leather powder
SU49211A1
(en )
1936-08-31
The method of preparation of plastics
SU30598A1
(en )
1933-05-31
Betonerka