Control knob for audio apparatus

Details Control knob for audio apparatus Control knob for audio apparatus

1977-06-29

1979-10-30

Stearman, Joel

Recording, communication, or information retrieval equipment

Computer, data processor equipment

D 8312, D14 76, D14 84, D1499, D0806

Patent

active

D02532891

REFERENCES:
patent: D186982 (1960-01-01), Moxneck
patent: 2573291 (1951-10-01), Wagenknecht
Evans 1976 cat., c 1975, p. 29x, item "C".
Heathkit Spring 1976 cat., c 1976, p. 34, item #"AA-18", "Volume" & "Tone" Knobs.
Stereo Review, 6-76, p. 29, Mida Receiver, top right corner knob.

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