Drafting instrument
Description
FIG. 1 is a top plan view of a drafting instrument showing my new design; and
FIG. 2 is an end view thereof.
Referenced Cited
U.S. Patent Documents
Other references
| D134142 | October 1942 | Truhorn |
| D141882 | July 1945 | Matson |
| D167432 | August 1952 | Turner |
| 411617 | September 1889 | Rondinella |
| 699738 | May 1902 | Zange |
| 1461335 | July 1923 | Vosler |
| 2532329 | December 1950 | Premo |
- Dolgorukov Manufacturing Co. Catalog, p. 4, Guide Liner. Alvin & Co., Inc. Catalog, p. 11, top right of page-Screw Heads Template. Alvin & Co., Inc. Catalog, p. 34, top center of page, Isometric Ellipse.
Patent History
Patent number: D284675
Type: Grant
Filed: Jun 6, 1983
Date of Patent: Jul 15, 1986
Inventor: David C. Ashley (Syracuse, NY)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Theodore M. Shooman
Attorney: Charles S. McGuire
Application Number: 6/501,589
Type: Grant
Filed: Jun 6, 1983
Date of Patent: Jul 15, 1986
Inventor: David C. Ashley (Syracuse, NY)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Theodore M. Shooman
Attorney: Charles S. McGuire
Application Number: 6/501,589
Classifications
Current U.S. Class:
Guide (6) (D19/37)
