Illuminated ruler

Details Illuminated ruler Illuminated ruler

2006-10-24

2006-10-24

Davis, Antoine D. (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

Design Patent

active

D0530636

CLAIM:
The ornamental design for an illuminated ruler, as shown and described.

REFERENCES:
patent: 202545 (1878-04-01), Holmes
patent: 1474804 (1923-11-01), Tyrrell
patent: 4974164 (1990-11-01), Lewis et al.
patent: 5243504 (1993-09-01), Sejzer
patent: 5313713 (1994-05-01), Heger et al.
patent: 5519592 (1996-05-01), Helms
patent: 5637838 (1997-06-01), Arey et al.
patent: D388345 (1997-12-01), Burns
patent: D448687 (2001-10-01), Landwerlen
patent: 6415521 (2002-07-01), Schnell
patent: 6615520 (2003-09-01), Landers, Jr. et al.

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