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Jury Ivanovich Zelenov
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LATE OF Moscow, SU
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last 30 patents
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Patent Grant
Tubular coiled heat exchanger and device for manufacturing same
Patent number
4,116,270
Issue date
Sep 26, 1978
Ruf Fedorovich Marushkin
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Two-roll machine for rolling-out disc-type articles
Patent number
3,939,684
Issue date
Feb 24, 1976
Alexei Kirillovich Ignatiev
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...