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Silvio Brignoli

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  • CH-6981 Monteggio, CH
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Patents Grantslast 30 patents

  • Information Patent Grant

    High speed hammer forging machines
    • Patent number 3,945,237
    • Issue date Mar 23, 1976
    • Silvio Brignoli
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...