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Hammill Manuf. Co.

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  • Toledo, OH, US
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  • Information Patent Grant

    Double D key locking prosthesis
    • Patent number 6,440,171
    • Issue date Aug 27, 2002
    • Hammill Manuf. Co.
    • Robert L. Doubler
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

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