CH220183A
(en )
1942-03-31
Dishwasher.
SU54814A1
(en )
1938-11-30
The method of obtaining food acetic acid
SU55395A1
(en )
1938-11-30
The method of obtaining likes
SU54709A1
(en )
1938-11-30
The method of obtaining acetic acid from wood powder
SU55611A1
(en )
1938-11-30
The method of obtaining aromatic oxaldehyde
SU55544A1
(en )
1938-11-30
The method of obtaining the juice of the fruit of the citrus family
SU55576A1
(en )
1938-11-30
The method of artificial aging of wines
SU55551A1
(en )
1939-08-31
The method of obtaining sulfur dyes
SU54535A1
(en )
1938-11-30
The method of cleaning technical acetic acid
SU54797A1
(en )
1938-11-30
Sulfuric Acid Denitration Method
SU54382A1
(en )
1938-11-30
The method of producing alkyl mercurphosphates
SU55556A1
(en )
1939-09-30
Germanium production method
SU55278A1
(en )
1938-11-30
Method for making blueprint paper
SU54620A1
(en )
1938-11-30
The method of heat treatment of spiral springs
SU54425A1
(en )
1938-11-30
The method of hardening rail against fracture
SU54825A1
(en )
1938-11-30
The method of processing cedar pencil tablets
SU55610A1
(en )
1938-11-30
The method of obtaining artificial resin
SU54541A1
(en )
1938-11-30
A method of making incendiary electrodes for electrovacuum devices of the type of ignatrons
SU54618A1
(en )
1938-11-30
The method of repair of hollow cast metal blocks
SU54822A1
(en )
1938-11-30
The method of processing cedar plates for the manufacture of pencils
SU55362A1
(en )
1938-11-30
Method rolls shoes boots
SU55045A1
(en )
1938-11-30
Glasses
SU54634A1
(en )
1938-11-30
Ceramic insulation material
SU55542A1
(en )
1938-11-30
Method for making abrasive products
CH206960A
(en )
1939-09-15
Bipolar electrolyser.