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Elena Yakovlevna Golovkina
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Minsk, SU
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last 30 patents
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Patent Grant
Device for electrical discharge forming
Patent number
4,030,329
Issue date
Jun 21, 1977
Viktor Nikolaevich Chachin
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Device for electrical discharge forming
Patent number
4,027,515
Issue date
Jun 7, 1977
Viktor Nikolaevich Chachin
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...