Using Pick-up Means For Reading Recorded Waves, E.g., On Rotating Discs, Drums, Tapes, Or Wires, Etc. {g10h 3/03} Patents (Class 984/357)

Cross-Reference Art Collections

Using photoelectric pick-up means {g10h 3/06} (Class 984/358)
Using inductive pick-up means {g10h 3/08} (Class 984/359)
Using capacitative pick-up means {g10h 3/10} (Class 984/361)

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