TREA

Oskar Alexander Hellwig

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  • Springfield, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

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    • Patent number 4,277,963
    • Issue date Jul 14, 1981
    • Beatrice Foods Co.
    • Oskar A. Hellwig
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

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    • Patent number 4,086,796
    • Issue date May 2, 1978
    • Beatrice Foods Co.
    • Oskar Alexander Hellwig
    • A45 - HAND OR TRAVELLING ARTICLES
  • Information Patent Grant

    Key case head
    • Patent number 4,085,602
    • Issue date Apr 25, 1978
    • Beatrice Foods Co.
    • Oskar Alexander Hellwig
    • A45 - HAND OR TRAVELLING ARTICLES