SU10212A1
(en )
1929-06-29
Method of removing iron from tin dioxide obtained from white tin waste
SU10419A1
(en )
1929-07-31
Disinsection method
SU10307A1
(en )
1929-06-29
The method of preparation of drying oil
SU24004A1
(en )
1931-11-30
Diffuser processing method
SU15593A1
(en )
1930-06-30
Salol cleaning method
SU42032A1
(en )
1935-03-31
The method of preparation of briquettes from wood waste
SU20800A1
(en )
1931-05-31
The method of making wooden coils
SU19624A1
(en )
1931-03-31
The method of cleaning black wood powder
SU8560A1
(en )
1929-03-30
The method of electrolytic separation of iodine from its solutions
SU20442A1
(en )
1931-04-30
The method of removal from paper typographical, etc. paints
SU14747A1
(en )
1930-03-31
Wood preservation and disinfection method
SU21285A1
(en )
1931-07-31
The method of preparation of mastic for rubbing floors
SU8622A1
(en )
1929-03-30
Microphone
SU16197A1
(en )
1930-08-31
The method of producing mercuric chloride
SU17542A1
(en )
1930-09-30
The method of preparation of lubricating briquettes
SU9912A1
(en )
1929-06-29
The method of obtaining black paint from waste solutions of iron salts
SU2512A1
(en )
1927-03-31
Drum
SU15595A1
(en )
1930-06-30
The method of purification of salicylic acid mercury
SU18003A1
(en )
1930-09-30
The method of preparation of aromatic liquid
SU14395A1
(en )
1930-03-31
Method of making handwritten originals for copying machines
SU8780A1
(en )
1929-03-30
The method of obtaining ammonium bromide from methyl bromide of iron
SU23066A1
(en )
1931-09-30
Blacksmith tongs
SU23595A1
(en )
1931-10-31
The method of impregnation of wood or products from it
SU17001A1
(en )
1930-09-30
Method for making photosensitive papers from diazo compounds
SU8656A1
(en )
1929-03-30
Shaped brick