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Christian Scheidegger
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Buchs, CH
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last 30 patents
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Patent Grant
Electronic keyboard musical instrument and a method of operating th...
Patent number
4,644,840
Issue date
Feb 24, 1987
Reinhard; Franz
Reinhard Franz
G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Patent Grant
Electronic musical instrument
Patent number
4,572,048
Issue date
Feb 25, 1986
Franz; Reinhard
Reinhard Franz
G10 - MUSICAL INSTRUMENTS ACOUSTICS