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Variable rate portamento system
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Patent number 4,207,793
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Issue date Jun 17, 1980
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The Wurlitzer Company
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Anthony C. Ippolito
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3617901
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Patent number 3,617,901
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Issue date Nov 2, 1971
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3539698
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Patent number 3,539,698
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Issue date Nov 10, 1970
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3520982
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Patent number 3,520,982
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Issue date Jul 21, 1970
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3515039
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Patent number 3,515,039
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Issue date Jun 2, 1970
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3510565
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Patent number 3,510,565
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Issue date May 5, 1970
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3472116
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Patent number 3,472,116
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Issue date Oct 14, 1969
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3446905
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Patent number 3,446,905
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Issue date May 27, 1969
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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3000252
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Patent number 3,000,252
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Issue date Sep 19, 1961
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2914733
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Patent number 2,914,733
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Issue date Nov 24, 1959
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2697959
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Patent number 2,697,959
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Issue date Dec 28, 1954
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2580217
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Patent number 2,580,217
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Issue date Dec 25, 1951
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2574577
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Patent number 2,574,577
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Issue date Nov 13, 1951
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2274370
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Patent number 2,274,370
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Issue date Feb 24, 1942
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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2169762
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Patent number 2,169,762
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Issue date Aug 15, 1939
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1940093
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Patent number 1,940,093
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Issue date Dec 19, 1933
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1837144
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Patent number 1,837,144
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Issue date Dec 15, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1829099
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Patent number 1,829,099
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Issue date Oct 27, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1823724
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Patent number 1,823,724
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Issue date Sep 15, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1823716
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Patent number 1,823,716
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Issue date Sep 15, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1791374
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Patent number 1,791,374
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Issue date Feb 3, 1931
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1661058
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Patent number 1,661,058
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Issue date Feb 28, 1928
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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1266142
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Patent number 1,266,142
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Issue date May 14, 1918
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G10 - MUSICAL INSTRUMENTS ACOUSTICS