Drafting machine scale magnifier attachment

- Vemco Corporation
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Description

FIG. 1 is a perspective view of a drafting machine scale magnifier attachment showing my new design, the rule portion shown in broken lines being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a cross-sectional view thereof as taken from line 3--3 of FIG. 2.

Referenced Cited
U.S. Patent Documents
D218537 August 1970 Bushon
D242329 February 1977 Snarski
D253045 October 2, 1979 Rizer
1798953 March 1931 Rennicke
1806422 May 1931 Shaen
2355161 August 1944 Holstein
Patent History
Patent number: D263721
Type: Grant
Filed: Apr 4, 1980
Date of Patent: Apr 6, 1982
Assignee: Vemco Corporation (Pasadena, CA)
Inventor: Michael L. Miller (Pasadena, CA)
Primary Examiner: Nelson C. Holtje
Attorney: Robert M. McManigal
Application Number: 6/137,262
Classifications
Current U.S. Class: Magnifying Or Reducing Glass (D16/135); Element Or Attachment (4) (D10/74)
International Classification: D1606;