TREA

Means for recording operation of the apparatus

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Industry

  • CPC
  • G08B9/04
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Parent Industries

GPHYSICS G08Signaling G08BSIGNALLING OR CALLING SYSTEMS ORDER TELEGRAPHS ALARM SYSTEMS G08B9/00Order telegraph apparatus, i.e. means for transmitting one of a finite number of different orders at the discretion of the user

Current Industry

G08B9/04Means for recording operation of the apparatus
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    2772940
    • Patent number 2,772,940
    • Issue date Dec 4, 1956
    • G08 - SIGNALLING
  • Information Patent Grant

    2599702
    • Patent number 2,599,702
    • Issue date Jun 10, 1952
    • G08 - SIGNALLING
  • Information Patent Grant

    2541426
    • Patent number 2,541,426
    • Issue date Feb 13, 1951
    • G08 - SIGNALLING
  • Information Patent Grant

    2438331
    • Patent number 2,438,331
    • Issue date Mar 23, 1948
    • G08 - SIGNALLING
  • Information Patent Grant

    2428528
    • Patent number 2,428,528
    • Issue date Oct 7, 1947
    • G08 - SIGNALLING
  • Information Patent Grant

    2348158
    • Patent number 2,348,158
    • Issue date May 2, 1944
    • G08 - SIGNALLING
  • Information Patent Grant

    1815389
    • Patent number 1,815,389
    • Issue date Jul 21, 1931
    • G08 - SIGNALLING
  • Information Patent Grant

    1787066
    • Patent number 1,787,066
    • Issue date Dec 30, 1930
    • G08 - SIGNALLING
  • Information Patent Grant

    1345626
    • Patent number 1,345,626
    • Issue date Jul 6, 1920
    • G08 - SIGNALLING

Patents Applicationslast 30 patents