Instrument

Details Instrument Instrument

1995-11-15

1997-01-21

Raevis, Robert

Measuring and testing

Instrument casing

359613, B44F 100

Patent

active

055961436

ABSTRACT:
An instrument having a front cover which can be easily cleaned when dust and dirt adhere on the front surface of the instrument cover. The front cover has a toothed surface for reducing light reflection at the central portion of the front cover, and a smoothed fringe surface around the toothed surface which has an area for accepting a piece of wiping cloth. When dust and dirt accumulate in the toothed surface, they can be wiped off by a piece of cloth easily.

REFERENCES:
patent: 2683498 (1954-07-01), Schaack
patent: 3652370 (1972-03-01), Motal

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