Drawing instrument
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Description
The FIGURE is a top plan view of a drawing instrument showing my new design, the bottom, not shown, is plain and unornamented.
Referenced Cited
U.S. Patent Documents
Other references
| D116007 | August 1939 | Bakallie |
| D116008 | August 1939 | Bakallie |
| D141882 | July 1945 | Matson |
| D204017 | March 1966 | Goldman |
- Art Brown Cat. .COPYRGT.1973-p. 149-Isometric Ellipse Template.
Patent History
Patent number: D261368
Type: Grant
Filed: Dec 3, 1979
Date of Patent: Oct 20, 1981
Assignee: McGraw-Hill, Inc. (New York, NY)
Inventor: Joseph E. Barreca (Old Bridge Township, Mercer County, NJ)
Primary Examiner: Nelson C. Holtje
Law Firm: Darby & Darby
Application Number: 6/99,562
Type: Grant
Filed: Dec 3, 1979
Date of Patent: Oct 20, 1981
Assignee: McGraw-Hill, Inc. (New York, NY)
Inventor: Joseph E. Barreca (Old Bridge Township, Mercer County, NJ)
Primary Examiner: Nelson C. Holtje
Law Firm: Darby & Darby
Application Number: 6/99,562
Classifications
