SU3151A1
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1927-06-30
The method of obtaining powder from low-melting metal alloys
SU24132A1
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1931-11-30
The method of producing alloys of metals
SU5809A1
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1928-07-31
The method of obtaining ethyl chloride
SU7602A1
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1929-01-31
Metal propeller
SU5494A1
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1928-05-31
The method of grinding nitrate
SU5798A1
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1928-07-31
The method of preparation of green copper paint small
SU5238A1
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1928-04-30
Solder composition
SU22897A1
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1931-09-30
The method of preparation of products from hard alloys
SU3698A1
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1927-09-30
The method of equity connection of metal and wood rods
SU9944A1
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1929-06-29
The method of preparation of welding powder for cast iron
SU3277A1
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1927-07-31
Method of making tobacco smoke from tobacco dust
CH123017A
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1927-10-17
Metal alloy for hydraulic machinery parts.
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1931-02-28
The method of obtaining aluminum alloy
SU4605A1
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1928-02-29
Method of forming thin holes in metals
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1929-03-30
Flour Mill
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1931-10-31
The method of obtaining the orange crown
FR653900A
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1929-03-28
Advanced metal alloy
ES122165A1
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1931-04-16
An improved process for the preparation of metal alloys.
FR655927A
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1929-04-25
Alloy for foundry, rolling, stamping
CA263856A
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1926-08-31
Bearing metal alloy
FR653901A
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1929-03-29
Metal alloy
CA276665A
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1927-12-27
Alloy steel
CA275258A
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1927-11-08
Corrosion-resisting metal
GR7886B
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1938-12-27
METAL ALLOY.
ES143960A1
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1938-07-01
Method of construction of removable metal covers.