Electromagnetic bell

Description

FIG. 1 is a front elevational view of an electromagnetic bell showing our new design, the rear being the same in appearance as the front;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D149907 June 1948 Rifkin
2189181 February 1940 Rittenhouse
2290717 July 1942 Swanson
4300128 November 10, 1981 Ishii
Patent History
Patent number: D304163
Type: Grant
Filed: Dec 11, 1986
Date of Patent: Oct 24, 1989
Assignee: Seikosha Co., Ltd.
Inventors: Junichi Aizawa (Tokyo), Shoichiro Kumazawa (Tokyo), Satoru Yamauchi (Tokyo), Isao Kondo (Tokyo)
Primary Examiner: Susan J. Lucas
Attorneys: Bruce L. Adams, Van C. Wilks
Application Number: 6/940,646
Classifications
Current U.S. Class: D10/116