Light level

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1994-06-06

1999-02-02

Davis, Antoine Duval

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

1004

Patent

active

D04050185

REFERENCES:
patent: D269255 (1983-06-01), Olson
patent: 4003134 (1977-01-01), Adams
patent: 4130943 (1978-12-01), Talbot
patent: 4392184 (1983-07-01), Hearold et al.
patent: 4590682 (1986-05-01), Koch
patent: 4876798 (1989-10-01), Zimmerman
patent: 4912854 (1990-04-01), Weadon
patent: 5020232 (1991-06-01), Whiteford
Brochure distributed by American Inventors Corporation approximately during Jun. 1993.

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