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John G. Smith

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Amplification circuit for electronic tone generator

Music – Instruments
Patent

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Apparatus including a conductive wick for applying liquid releas

Photocopying – Including fiber optics
Patent

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Automatic bass chord accompaniment apparatus for an electronic m

Music – Instruments – Electrical musical tone generation
Patent

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Automatic exposure device for copying machine

Photocopying – Projection printing and copying cameras – Combined with or convertible to a contact printer
Patent

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Automatic rhythm performing apparatus with modifiable correspond

Music – Instruments – Electrical musical tone generation
Patent

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Profile ID: LFUS-PAI-P-80061

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