Spring driven phonograph for internal placement in toys or the l

Details Spring driven phonograph for internal placement in toys or the l Spring driven phonograph for internal placement in toys or the l

1981-08-27

1985-01-22

Corrigan, Jane E.

Recording, communication, or information retrieval equipment

Computer, data processor equipment

Patent

active

D02772760

REFERENCES:
patent: 4004815 (1977-01-01), Watanabe
patent: 4107489 (1978-08-01), Watanabe
patent: 4195843 (1980-04-01), Watanabe et al.
patent: 4198057 (1980-04-01), Miura

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