Gramophone equipment

Details Gramophone equipment Gramophone equipment

1977-10-07

1979-10-09

Aegerter, Richard E.

Undertaking

G11B 1708

Patent

active

041703596

ABSTRACT:
Gramophone equipment has a record changing mechanism including a screw arrangement which can be operated to lift and lower a record support platform.

REFERENCES:
patent: 1449252 (1923-03-01), Stout
patent: 1841593 (1932-01-01), Benjamin
patent: 1875641 (1932-09-01), Moore
patent: 2153864 (1939-04-01), Faust
patent: 2251381 (1941-08-01), Wright
patent: 2685447 (1954-08-01), Ristau et al.
patent: 3379442 (1968-04-01), Tatter et al.
patent: 3438636 (1969-04-01), Carlson

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