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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
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
SU7602A1
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1929-01-31
Metal propeller
SU3698A1
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1927-09-30
The method of equity connection of metal and wood rods
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
SU8261A1
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1929-03-30
Flour Mill
SU2186A1
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1927-01-31
The method of obtaining photographic magnifications
SU10891A1
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1929-07-31
The method of manufacture of detectors
SU8878A1
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1929-04-30
The method of processing shellac
CA263856A
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1926-08-31
Bearing metal alloy
CA254255A
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1925-10-06
Bearing metal alloy
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.
CA268450A
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1927-02-15
Metal expander
AU2520025A
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1926-02-02
Bearing metal alloys
ES104811A1
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1927-12-16
An improved process for the preparation of fusible alloys.
DK40381C
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1929-07-01
Procedure for the production of aluminum alloys.