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Drawing of

Ovation Breadwinner Guitar Pickup 1976 Patent

US3962946 1976 James H. Rickard US magnetic induction stringed instrument pickup 10 drawings

A magnetic induction type electrical pickup for a stringed musical instrument featuring two coils with permanent magnet elements. The arrangement minimizes stray magnetic fields to suppress noise from nearby electrical devices, while construction features repress resonant vibration of internal parts.

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