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Continue to ChatRockin’ Patent – Raymond Scott’s “Keyboard Operated Electrical Musical Instrument” https://www.russellip.com/rockin-patent-raymond-scotts-keyboard-operated-electrical-musical-instrument/
Rockin’ Patent – Raymond Scott’s “Keyboard Operated Electrical Musical Instrument” https://www.russellip.com/rockin-patent-raymond-scotts-keyboard-operated-electrical-musical-instrument/