TREA

Lev Vladimirovich Vishnyakov

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  • Moscow, SU
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Patents Grantslast 30 patents

  • Information Patent Grant

    Device for bending thin-walled pipes
    • Patent number 4,007,622
    • Issue date Feb 15, 1977
    • Abram Isaevich Galperin
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...