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3882754
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2917963
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1946827
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1751248
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1750325
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Patent number 1,750,325
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1742057
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Issue date Dec 31, 1929
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1741373
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Issue date Dec 31, 1929
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1739799
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Patent number 1,739,799
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Issue date Dec 17, 1929
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1738257
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Patent number 1,738,257
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1736580
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Patent number 1,736,580
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Issue date Nov 19, 1929
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1724140
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Patent number 1,724,140
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Issue date Aug 13, 1929
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1723767
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Patent number 1,723,767
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1691506
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Patent number 1,691,506
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Issue date Nov 13, 1928
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1667925
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Patent number 1,667,925
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1621125
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Patent number 1,621,125
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Issue date Mar 15, 1927
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1621126
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Patent number 1,621,126
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Issue date Mar 15, 1927
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1621127
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Patent number 1,621,127
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Issue date Mar 15, 1927
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1603658
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Patent number 1,603,658
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Issue date Oct 19, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1603797
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Patent number 1,603,797
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Issue date Oct 19, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1586259
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Patent number 1,586,259
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1580682
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Patent number 1,580,682
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Issue date Apr 13, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1579827
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Patent number 1,579,827
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Issue date Apr 6, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1579790
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Patent number 1,579,790
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Issue date Apr 6, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1579791
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Patent number 1,579,791
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Issue date Apr 6, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1579792
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Patent number 1,579,792
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Issue date Apr 6, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1570947
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Patent number 1,570,947
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Issue date Jan 26, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1570911
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Patent number 1,570,911
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Issue date Jan 26, 1926
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G10 - MUSICAL INSTRUMENTS ACOUSTICS