TREA

Dot-and dash telegraphic codes

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Industry

  • CPC
  • G09B19/26
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Parent Industries

GPHYSICS G09Cryptography, education, displays G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE MODELS PLANETARIA GLOBES MAPS DIAGRAMS G09B19/00Teaching not covered by other main groups of this subclass

Current Industry

G09B19/26Dot-and dash telegraphic codes
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    System and use method for a Morse code training tool
    • Patent number 10,249,216
    • Issue date Apr 2, 2019
    • The CW Operators' Club
    • Robert Brownstein
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Switch actuated communication device
    • Patent number 4,706,067
    • Issue date Nov 10, 1987
    • Lane T. Hauck
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Code tutoring system
    • Patent number 4,661,073
    • Issue date Apr 28, 1987
    • David L. Smart
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Apparatus for converting code signal to visual display
    • Patent number 4,255,749
    • Issue date Mar 10, 1981
    • Gary G. Henry
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    Blinker practice light
    • Patent number 4,006,305
    • Issue date Feb 1, 1977
    • Emmett A. Hanratty
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3821732
    • Patent number 3,821,732
    • Issue date Jun 28, 1974
    • G08 - SIGNALLING
  • Information Patent Grant

    3735046
    • Patent number 3,735,046
    • Issue date May 22, 1973
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3656157
    • Patent number 3,656,157
    • Issue date Apr 11, 1972
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3645015
    • Patent number 3,645,015
    • Issue date Feb 29, 1972
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3462855
    • Patent number 3,462,855
    • Issue date Aug 26, 1969
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3373507
    • Patent number 3,373,507
    • Issue date Mar 19, 1968
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3233343
    • Patent number 3,233,343
    • Issue date Feb 8, 1966
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3233344
    • Patent number 3,233,344
    • Issue date Feb 8, 1966
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3228120
    • Patent number 3,228,120
    • Issue date Jan 11, 1966
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2988822
    • Patent number 2,988,822
    • Issue date Jun 20, 1961
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2976619
    • Patent number 2,976,619
    • Issue date Mar 28, 1961
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2977418
    • Patent number 2,977,418
    • Issue date Mar 28, 1961
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2954437
    • Patent number 2,954,437
    • Issue date Sep 27, 1960
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2951122
    • Patent number 2,951,122
    • Issue date Aug 30, 1960
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2947090
    • Patent number 2,947,090
    • Issue date Aug 2, 1960
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2935564
    • Patent number 2,935,564
    • Issue date May 3, 1960
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2923069
    • Patent number 2,923,069
    • Issue date Feb 2, 1960
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2857460
    • Patent number 2,857,460
    • Issue date Oct 21, 1958
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2808660
    • Patent number 2,808,660
    • Issue date Oct 8, 1957
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2772326
    • Patent number 2,772,326
    • Issue date Nov 27, 1956
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2702313
    • Patent number 2,702,313
    • Issue date Feb 15, 1955
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2645768
    • Patent number 2,645,768
    • Issue date Jul 14, 1953
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2509170
    • Patent number 2,509,170
    • Issue date May 23, 1950
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2492160
    • Patent number 2,492,160
    • Issue date Dec 27, 1949
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    2473749
    • Patent number 2,473,749
    • Issue date Jun 21, 1949
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents