Apparatus or circuits for sending one or a restricted number of signals

Patents Grantslast 30 patents

  • Information Patent Grant

    International Morse Code number generator

    • Patent number 4,292,624
    • Issue date Sep 29, 1981
    • William K. Serp
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3786494

    • Patent number 3,786,494
    • Issue date Jan 15, 1974
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3755794

    • Patent number 3,755,794
    • Issue date Aug 28, 1973
    • G06 - COMPUTING CALCULATING COUNTING
  • Information Patent Grant

    3668684

    • Patent number 3,668,684
    • Issue date Jun 6, 1972
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3548407

    • Patent number 3,548,407
    • Issue date Dec 15, 1970
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3496563

    • Patent number 3,496,563
    • Issue date Feb 17, 1970
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3396238

    • Patent number 3,396,238
    • Issue date Aug 6, 1968
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3354396

    • Patent number 3,354,396
    • Issue date Nov 21, 1967
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3300582

    • Patent number 3,300,582
    • Issue date Jan 24, 1967
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3206743

    • Patent number 3,206,743
    • Issue date Sep 14, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3176229

    • Patent number 3,176,229
    • Issue date Mar 30, 1965
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3174103

    • Patent number 3,174,103
    • Issue date Mar 16, 1965
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3154640

    • Patent number 3,154,640
    • Issue date Oct 27, 1964
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3061719

    • Patent number 3,061,719
    • Issue date Oct 30, 1962
    • G08 - SIGNALLING
  • Information Patent Grant

    3021516

    • Patent number 3,021,516
    • Issue date Feb 13, 1962
    • G01 - MEASURING TESTING
  • Information Patent Grant

    3007001

    • Patent number 3,007,001
    • Issue date Oct 31, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    3000002

    • Patent number 3,000,002
    • Issue date Sep 12, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2993118

    • Patent number 2,993,118
    • Issue date Jul 18, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2989625

    • Patent number 2,989,625
    • Issue date Jun 20, 1961
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2932732

    • Patent number 2,932,732
    • Issue date Apr 12, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2932733

    • Patent number 2,932,733
    • Issue date Apr 12, 1960
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2874292

    • Patent number 2,874,292
    • Issue date Feb 17, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2869116

    • Patent number 2,869,116
    • Issue date Jan 13, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2866185

    • Patent number 2,866,185
    • Issue date Dec 23, 1958
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2689343

    • Patent number 2,689,343
    • Issue date Sep 14, 1954
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2627599

    • Patent number 2,627,599
    • Issue date Feb 3, 1953
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2623172

    • Patent number 2,623,172
    • Issue date Dec 23, 1952
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2622145

    • Patent number 2,622,145
    • Issue date Dec 16, 1952
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2620390

    • Patent number 2,620,390
    • Issue date Dec 2, 1952
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2591982

    • Patent number 2,591,982
    • Issue date Apr 8, 1952
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE