TREA

Electro-acoustic time announcement

Follow

Industry

  • CPC
  • G04C21/14
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

GPHYSICS G04Horology G04CELECTROMECHANICAL CLOCKS OR WATCHES G04C21/00Producing acoustic time signals by electrical means

Current Industry

G04C21/14Electro-acoustic time announcement
Industries

Patents Grantslast 30 patents

  • Information Patent Grant

    Audible wrist watch assembly
    • Patent number 11,480,929
    • Issue date Oct 25, 2022
    • Robbie Wright
    • G04 - HOROLOGY
  • Information Patent Grant

    Chronograph assembly
    • Patent number 9,164,490
    • Issue date Oct 20, 2015
    • William A. Fraser
    • G04 - HOROLOGY
  • Information Patent Grant

    Talking watch device
    • Patent number 8,634,278
    • Issue date Jan 21, 2014
    • Trinh A. H. Nguyen
    • G04 - HOROLOGY
  • Information Patent Grant

    Voice feedback timer system
    • Patent number 6,967,902
    • Issue date Nov 22, 2005
    • WC Man Productions
    • Wade C. Klosterman
    • G04 - HOROLOGY
  • Information Patent Grant

    Clock assembly having a rotating device
    • Patent number 5,363,349
    • Issue date Nov 8, 1994
    • Fu-Bing Huang
    • G04 - HOROLOGY
  • Information Patent Grant

    Vocal reporting device for pointer type timers with accumulative ti...
    • Patent number 5,239,523
    • Issue date Aug 24, 1993
    • Feng; Tai-Chia
    • Feng Chin-Hsing
    • G04 - HOROLOGY
  • Information Patent Grant

    Speaking time keeper
    • Patent number 3,956,597
    • Issue date May 11, 1976
    • Aldo Carrarini
    • G04 - HOROLOGY
  • Information Patent Grant

    3708632
    • Patent number 3,708,632
    • Issue date Jan 2, 1973
    • G04 - HOROLOGY
  • Information Patent Grant

    3686851
    • Patent number 3,686,851
    • Issue date Aug 29, 1972
    • G04 - HOROLOGY
  • Information Patent Grant

    3644682
    • Patent number 3,644,682
    • Issue date Feb 22, 1972
    • G04 - HOROLOGY
  • Information Patent Grant

    3637952
    • Patent number 3,637,952
    • Issue date Jan 25, 1972
    • G04 - HOROLOGY
  • Information Patent Grant

    3611704
    • Patent number 3,611,704
    • Issue date Oct 12, 1971
    • G04 - HOROLOGY
  • Information Patent Grant

    3507110
    • Patent number 3,507,110
    • Issue date Apr 21, 1970
    • G04 - HOROLOGY
  • Information Patent Grant

    3135084
    • Patent number 3,135,084
    • Issue date Jun 2, 1964
    • G04 - HOROLOGY
  • Information Patent Grant

    3082544
    • Patent number 3,082,544
    • Issue date Mar 26, 1963
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
  • Information Patent Grant

    3024319
    • Patent number 3,024,319
    • Issue date Mar 6, 1962
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    2905769
    • Patent number 2,905,769
    • Issue date Sep 22, 1959
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2680150
    • Patent number 2,680,150
    • Issue date Jun 1, 1954
    • G04 - HOROLOGY
  • Information Patent Grant

    2641654
    • Patent number 2,641,654
    • Issue date Jun 9, 1953
    • G04 - HOROLOGY
  • Information Patent Grant

    2554404
    • Patent number 2,554,404
    • Issue date May 22, 1951
    • G04 - HOROLOGY
  • Information Patent Grant

    2520284
    • Patent number 2,520,284
    • Issue date Aug 29, 1950
    • G04 - HOROLOGY
  • Information Patent Grant

    2488840
    • Patent number 2,488,840
    • Issue date Nov 22, 1949
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2342555
    • Patent number 2,342,555
    • Issue date Feb 22, 1944
    • G04 - HOROLOGY
  • Information Patent Grant

    2285425
    • Patent number 2,285,425
    • Issue date Jun 9, 1942
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    2260655
    • Patent number 2,260,655
    • Issue date Oct 28, 1941
    • G04 - HOROLOGY
  • Information Patent Grant

    2239215
    • Patent number 2,239,215
    • Issue date Apr 22, 1941
    • G04 - HOROLOGY
  • Information Patent Grant

    2207703
    • Patent number 2,207,703
    • Issue date Jul 16, 1940
    • G04 - HOROLOGY
  • Information Patent Grant

    2184724
    • Patent number 2,184,724
    • Issue date Dec 26, 1939
    • G04 - HOROLOGY
  • Information Patent Grant

    2144625
    • Patent number 2,144,625
    • Issue date Jan 24, 1939
    • G04 - HOROLOGY
  • Information Patent Grant

    2138890
    • Patent number 2,138,890
    • Issue date Dec 6, 1938
    • G04 - HOROLOGY

Patents Applicationslast 30 patents

  • Information Patent Application

    Audible Wrist Watch Assembly
    • Publication number 20210149346
    • Publication date May 20, 2021
    • Robbie Wright
    • G04 - HOROLOGY
  • Information Patent Application

    Talking Dome Watch for the Visually Impaired
    • Publication number 20140192626
    • Publication date Jul 10, 2014
    • Royal Hali Iplik Tekstil Mobilya Sanayi Ve Ticaret Anonim Sirketi
    • Kathleen Wolff
    • G04 - HOROLOGY
  • Information Patent Application

    Orgasm clock
    • Publication number 20080253233
    • Publication date Oct 16, 2008
    • Patrick Michael Dinkfeld
    • G04 - HOROLOGY