Exposure unit for lithographic plates

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Description

FIG. 1 is a front elevational view of an exposure unit for lithographic plates showing my new design, the rear being a mirror image but without the control panel;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image but without the electrical cord;

FIG. 4 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D198549 June 1964 Graw
D211186 July 1971 Hope
D211912 August 1968 Merino
D219180 November 1970 Stewart
D237904 December 1975 Montefusco
T903018 October 1972 Dexter
3851969 December 1974 Haus
4182569 January 8, 1980 Smith
Patent History
Patent number: D271776
Type: Grant
Filed: Sep 14, 1981
Date of Patent: Dec 13, 1983
Assignee: Master Etching Machine Company (Ambler, PA)
Inventor: Gerold Litschi (Lansdale, PA)
Primary Examiner: Nelson C. Holtje
Attorney: Richard D. Weber
Application Number: 6/302,206
Classifications
Current U.S. Class: D16/33
International Classification: D1604;