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Semyon E. Royzman
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Mt. Lebanon Township, Allegheny County, PA, US
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last 30 patents
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Patent Grant
Method and plant for fully continuous production of steel strip fro...
Patent number
4,696,458
Issue date
Sep 29, 1987
Blaw-Knox Corporation
Semyon E. Royzman
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Method and plant for fully continuous production of steel strip fro...
Patent number
4,664,701
Issue date
May 12, 1987
Blaw-Knox Corporation
Semyon E. Royzman
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...