TREA

Robert G. Donaldson

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone holder
    • Patent number 4,121,061
    • Issue date Oct 17, 1978
    • The Raymond Lee Organization, Inc.
    • Robert G. Donaldson
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE