TREA

Laimons Freimanis

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone subscriber line circuit
    • Patent number 4,056,691
    • Issue date Nov 1, 1977
    • Bell Telephone Laboratories, Incorporated
    • Laimons Freimanis
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Telephone subscriber line circuit
    • Patent number 4,056,689
    • Issue date Nov 1, 1977
    • Bell Telephone Laboratories, Incorporated
    • Laimons Freimanis
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Telephone ringer circuit
    • Patent number 4,042,786
    • Issue date Aug 16, 1977
    • Bell Telephone Laboratories, Incorporated
    • Laimons Freimanis
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE