for zithers

Patents Grantslast 30 patents

  • Information Patent Grant

    Musical key-changing apparatus for stringed instruments

    • Patent number 9,875,728
    • Issue date Jan 23, 2018
    • John Paul Pallay
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    Chord bar system for stringed musical instruments

    • Patent number 8,253,000
    • Issue date Aug 28, 2012
    • Roy Dale Martin
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    Musical instrument

    • Patent number 4,020,730
    • Issue date May 3, 1977
    • Elgie E. Hill
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    3515026

    • Patent number 3,515,026
    • Issue date Jun 2, 1970
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    3499357

    • Patent number 3,499,357
    • Issue date Mar 10, 1970
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    3401586

    • Patent number 3,401,586
    • Issue date Sep 17, 1968
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    3383971

    • Patent number 3,383,971
    • Issue date May 21, 1968
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    3237503

    • Patent number 3,237,503
    • Issue date Mar 1, 1966
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    3138051

    • Patent number 3,138,051
    • Issue date Jun 23, 1964
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    2975666

    • Patent number 2,975,666
    • Issue date Mar 21, 1961
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    2906158

    • Patent number 2,906,158
    • Issue date Sep 29, 1959
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    2485108

    • Patent number 2,485,108
    • Issue date Oct 18, 1949
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    2244332

    • Patent number 2,244,332
    • Issue date Jun 3, 1941
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1988220

    • Patent number 1,988,220
    • Issue date Jan 15, 1935
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1799172

    • Patent number 1,799,172
    • Issue date Apr 7, 1931
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1745265

    • Patent number 1,745,265
    • Issue date Jan 28, 1930
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1624061

    • Patent number 1,624,061
    • Issue date Apr 12, 1927
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1588636

    • Patent number 1,588,636
    • Issue date Jun 15, 1926
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1582625

    • Patent number 1,582,625
    • Issue date Apr 27, 1926
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1547960

    • Patent number 1,547,960
    • Issue date Jul 28, 1925
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1505514

    • Patent number 1,505,514
    • Issue date Aug 19, 1924
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1444003

    • Patent number 1,444,003
    • Issue date Feb 6, 1923
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1405328

    • Patent number 1,405,328
    • Issue date Jan 31, 1922
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1376738

    • Patent number 1,376,738
    • Issue date May 3, 1921
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1352618

    • Patent number 1,352,618
    • Issue date Sep 14, 1920
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1346707

    • Patent number 1,346,707
    • Issue date Jul 13, 1920
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1341072

    • Patent number 1,341,072
    • Issue date May 25, 1920
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1320523

    • Patent number 1,320,523
    • Issue date Nov 4, 1919
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1320532

    • Patent number 1,320,532
    • Issue date Nov 4, 1919
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS
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    1314117

    • Patent number 1,314,117
    • Issue date Aug 26, 1919
    • G10 - MUSICAL INSTRUMENTS ACOUSTICS

Patents Applicationslast 30 patents