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3608414
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Patent number 3,608,414
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Issue date Sep 28, 1971
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3077138
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Patent number 3,077,138
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Issue date Feb 12, 1963
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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2649826
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Patent number 2,649,826
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Issue date Aug 25, 1953
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2598574
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Patent number 2,598,574
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Issue date May 27, 1952
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2488111
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Patent number 2,488,111
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Issue date Nov 15, 1949
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2299591
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Patent number 2,299,591
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Issue date Oct 20, 1942
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2279637
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Patent number 2,279,637
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Issue date Apr 14, 1942
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1896146
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Patent number 1,896,146
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Issue date Feb 7, 1933
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1831552
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Patent number 1,831,552
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Issue date Nov 10, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1740355
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Patent number 1,740,355
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1572167
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Patent number 1,572,167
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Issue date Feb 9, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1488036
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Patent number 1,488,036
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1431912
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Patent number 1,431,912
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Issue date Oct 10, 1922
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1413638
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Patent number 1,413,638
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Issue date Apr 25, 1922
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1320783
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Patent number 1,320,783
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1300519
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Patent number 1,300,519
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Issue date Apr 15, 1919
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1251233
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Patent number 1,251,233
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Issue date Dec 25, 1917
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1158988
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1037603
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Patent number 1,037,603
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1034001
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Patent number 1,034,001
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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964503
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Patent number 964,503
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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879170
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Patent number 879,170
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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720541
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Patent number 720,541
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Issue date Feb 10, 1903
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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695958
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Patent number 695,958
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Issue date Mar 25, 1902
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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681939
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Patent number 681,939
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Issue date Sep 3, 1901
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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661740
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Patent number 661,740
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Issue date Nov 13, 1900
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G10 - MUSICAL INSTRUMENTS ACOUSTICS