Sound actuated clock-mirror

Details Sound actuated clock-mirror Sound actuated clock-mirror

1980-01-17

1981-06-02

Miska, Vit W.

Horology: time measuring systems or devices

Combined with disparate device

368 67, 368227, G04B 4700, G04B 1930

Patent

active

042714923

ABSTRACT:
A half-silvered mirror closes off one end of a peripheral housing, in spaced relation behind which half-silvered mirror is a clock face. Lighting means within the space between the half-silvered mirror and the clock face provides for selective illumination of the clock face for visualization through the half-silvered mirror. Sound actuated means is also provided for selective temporary energization of the lighting means to illuminate the clock face for time telling.

REFERENCES:
patent: 2132474 (1938-10-01), Holm

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