Leonid V. Prozorov

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Moscow, SU

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Patents Grantslast 30 patents

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Pressing branch pipe on thick-walled shell-device for realization t...
- Patent number 4,246,772
- Issue date Jan 27, 1981
- Evgeny N. Moshnin
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...