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String bow practicing aid
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Patent number 10,665,212
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Issue date May 26, 2020
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Feliks Volozhanin
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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String instrument bow guide
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Patent number 9,190,035
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Issue date Nov 17, 2015
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Rebecca A. Ranck Fields
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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-
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Violin bow guide
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Patent number 5,301,589
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Issue date Apr 12, 1994
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Spadafora; Robert J.
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Robert J. Spadafora
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Bow stroke simulator
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Patent number 4,554,859
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Issue date Nov 26, 1985
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Leo D. V. Hanly
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Adjustable bow guide
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Patent number 3,987,700
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Issue date Oct 26, 1976
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Daniel Dunlap
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3730964
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Patent number 3,730,964
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Issue date May 1, 1973
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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3306150
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Patent number 3,306,150
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Issue date Feb 28, 1967
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3188901
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Patent number 3,188,901
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Issue date Jun 15, 1965
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3169438
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Patent number 3,169,438
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Issue date Feb 16, 1965
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3107568
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2782670
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Issue date Feb 26, 1957
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2240696
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Patent number 2,240,696
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Issue date May 6, 1941
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2239579
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Patent number 2,239,579
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Issue date Apr 22, 1941
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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2041146
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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1788700
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Patent number 1,788,700
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Issue date Jan 13, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1789210
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Patent number 1,789,210
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Issue date Jan 13, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1753053
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Patent number 1,753,053
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1723266
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Patent number 1,723,266
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1694786
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1639345
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Patent number 1,639,345
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Issue date Aug 16, 1927
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1623633
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Patent number 1,623,633
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1603371
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Patent number 1,603,371
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Issue date Oct 19, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1562062
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Patent number 1,562,062
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1508830
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Patent number 1,508,830
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Issue date Sep 16, 1924
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G10 - MUSICAL INSTRUMENTS ACOUSTICS