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Ivan Romanovich Kryanin
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Moscow, SU
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last 30 patents
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Patent Grant
Method for centrifugal casting of tubular metal blanks
Patent number
4,240,494
Issue date
Dec 23, 1980
Ivan R. Kryanin
B22 - CASTING POWDER METALLURGY
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Patent Grant
Device for centrifugal casting of hollow body with asymmetrical cro...
Patent number
3,965,968
Issue date
Jun 29, 1976
Nikolai Nikitievich Alexandrov
B22 - CASTING POWDER METALLURGY