Tape recorder with display function

Details Tape recorder with display function Tape recorder with display function

1977-11-29

1979-04-17

Smith, Jerry

Boots, shoes, and leggings

360 31, 324 99D, G11B 104, G06F 1502

Patent

active

041504356

ABSTRACT:
A tape recorder with display function comprises a tape recorder unit, a power source terminal connected to a power source for supplying power to the tape recorder unit, a voltage detector for detecting the voltage of the power source via the power source terminal, and a light emission semiconductor display device for digitally displaying the output of the voltge detector as the voltage of the power source.

REFERENCES:
patent: 3892921 (1975-07-01), Burkowitz
patent: 3940679 (1976-02-01), Brandwein et al.
patent: 4027231 (1977-05-01), Lohrmann

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