SU20252A1
(en )
1931-04-30
The method of obtaining the tanning extract from rumble
SU23341A1
(en )
1931-10-31
The method of coloring furs
SU10409A1
(en )
1929-07-31
The method of coloring furs, hair, etc.
SU19728A1
(en )
1931-03-31
The method of obtaining tanning juices and extracts
SU24058A1
(en )
1931-11-30
The method of preparation of phosphorescent substances
SU37796A1
(en )
1934-07-31
The method of obtaining sulfitellulose tanning extracts
SU15532A1
(en )
1930-05-31
Method of making cheese
SU15745A1
(en )
1930-06-30
The method of obtaining water-emulsifying chlorinated hydrocarbon preparations
SU20253A1
(en )
1931-04-30
The method of extraction of tanning materials
SU23252A1
(en )
1931-09-30
Device for the production and extraction of sleeves in the injectors
SU23538A1
(en )
1931-10-31
Tanning method
SU13495A1
(en )
1930-03-31
Method of cutting stones
SU10419A1
(en )
1929-07-31
Disinsection method
SU16196A1
(en )
1930-08-31
Air filter
SU15533A1
(en )
1930-05-31
The method of preparation of varnish from wood tar
SU20102A1
(en )
1931-04-30
The method of obtaining complex fertilizers
SU14747A1
(en )
1930-03-31
Wood preservation and disinfection method
SU24951A1
(en )
1932-01-31
The method of obtaining stretching of skeletal muscles
SU24943A1
(en )
1932-01-31
The method of processing tanning juices
SU29817A1
(en )
1933-04-30
The method of obtaining fruit, suitable and floral essences
SU10307A1
(en )
1929-06-29
The method of preparation of drying oil
SU2360A1
(en )
1927-02-28
The method of the device walls using zetoobraznyh shaped stones and plates
SU23501A1
(en )
1931-10-31
The method of obtaining sulfur dyes
SU2519A1
(en )
1927-03-31
The method of preparation of porous artificial stones
SU10088A1
(en )
1929-06-29
The method of obtaining strontium chloride