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using signals other than revertive impulses

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  • CPC
  • H04Q3/46
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Parent Industries

HELECTRICITY H04Electric communication H04QSELECTING H04Q3/00Selecting arrangements

Current Industry

H04Q3/46using signals other than revertive impulses
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Patents Grantslast 30 patents

  • Information Patent Grant

    2540654
    • Patent number 2,540,654
    • Issue date Feb 6, 1951
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS