TREA

Melvin A. Engelman

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  • Wappingers Falls, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Spruing assembly
    • Patent number 5,749,411
    • Issue date May 12, 1998
    • Dentifax International, Inc.
    • David M. Zielinski
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Sprue pin for producing castings
    • Patent number 4,741,378
    • Issue date May 3, 1988
    • Dentifax International, Inc.
    • Melvin A. Engelman
    • B22 - CASTING POWDER METALLURGY
  • Information Patent Grant

    Spruing assembly
    • Patent number 4,558,841
    • Issue date Dec 17, 1985
    • Dentifax International Inc.
    • Melvin A. Engelman
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE