Drafting ruler
Description
FIG. 1 is a front elevational view of a drafting ruler showing my new design, the rear elevational view being flat, plain and unornamented;
FIG. 2 is a top edge view, the bottom edge view being identical; and
FIG. 3 is a right side edge view thereof, the left side edge view being identical.
Referenced Cited
U.S. Patent Documents
Patent History
Patent number: D316051
Type: Grant
Filed: Dec 18, 1987
Date of Patent: Apr 9, 1991
Inventor: Svein E. Strande (Jevnaker)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Darby & Darby
Application Number: 7/135,402
Type: Grant
Filed: Dec 18, 1987
Date of Patent: Apr 9, 1991
Inventor: Svein E. Strande (Jevnaker)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Darby & Darby
Application Number: 7/135,402
Classifications
Current U.S. Class:
Rule, Tape Or Scale (10) (D10/71)