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Highfield Mfg. Company, a Division of Clarkson Industries, Inc.

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  • Bridgeport, CT, US
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  • Information Patent Grant

    Force-resistant locking devices
    • Patent number 4,254,647
    • Issue date Mar 10, 1981
    • Highfield Mfg. Company, a Division of Clarkson Industries, Inc.
    • Frederick P. Finck
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

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