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Ronald J. Sostek

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  • Chelmsford, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vial cap opener
    • Patent number D254156
    • Issue date Feb 12, 1980
    • Peter Swartz
    • D08 - Tools and hardware
  • Information Patent Grant

    Vial cap opener device
    • Patent number 4,178,646
    • Issue date Dec 18, 1979
    • Peter J. Swartz
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...