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Dennis A. Schaffer

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  • Hendersonville, TN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of making aluminum cans
    • Patent number 4,183,237
    • Issue date Jan 15, 1980
    • Carmet Company
    • Dennis A. Schaffer
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Can making
    • Patent number 4,109,502
    • Issue date Aug 29, 1978
    • Carmet Company
    • Dennis A. Schaffer
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...