Ruler with tapered groove

Details Ruler with tapered groove Ruler with tapered groove

2008-09-09

2008-09-09

Davis, Antoine D (Department: 2915)

Measuring, testing, or signalling instruments

Measuring, regulating or indicating instrument, or casing

Geometric

Design Patent

active

29291584

CLAIM:
The ornamental design for a ruler with tapered groove, as shown and described.

REFERENCES:
patent: D261612 (1981-11-01), Henkels
patent: D426784 (2000-06-01), Carlson
patent: D493735 (2004-08-01), Shapiro
patent: D554548 (2007-11-01), Verdura et al.

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