Etching device for offset printing machine

- Ryobi Ltd.
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Description

FIG. 1 is a left side elevational view of an etching device for offset printing machine showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a right side elevational view;

FIG. 6 is a rear view; and

FIG. 7 is a front and left side perspective view.

Referenced Cited
U.S. Patent Documents
D240558 July 1976 Shohoji et al.
2492577 December 1949 Janke
2590179 March 1952 Johnson
Foreign Patent Documents
100,316 November 1916 UK
Patent History
Patent number: D247521
Type: Grant
Filed: Apr 26, 1976
Date of Patent: Mar 14, 1978
Assignee: Ryobi Ltd. (Fuchu)
Inventors: Masakazu Sakamoto (Fukuyama), Takeshi Shohoji (Fukuyama)
Primary Examiner: Joel Stearman
Assistant Examiner: Louis S. Zarfas
Attorney: Richard C. Sughrue
Application Number: 5/680,399
Classifications
Current U.S. Class: D64/11R
International Classification: D1899;