Akhmet Galievich Chechenets

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Frunze, SU

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing hermetically sealed end in a tubular workpiece
- Patent number 4,059,977
- Issue date Nov 29, 1977
- Vladimir Georgievich Kaporovich
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...