Alarm for overdischarge of storage battery

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Description

FIG. 1 is a front elevational view of an alarm for overdischarge of storage battery showing my design;

FIG. 2 is a front perspective view thereof.

FIG. 3 is a rear perspective view thereof.

Referenced Cited
U.S. Patent Documents
3753072 August 1973 Jurgens
Foreign Patent Documents
609360 September 1948 GBX
Patent History
Patent number: D255553
Type: Grant
Filed: Nov 30, 1977
Date of Patent: Jun 24, 1980
Assignee: Sawafuji Denki Kabushiki Kaisha (Tokyo)
Inventor: Toshio Izumi (Nitta)
Primary Examiner: Susan J. Lucas
Law Firm: Quaintance, Murphy & Richardson
Application Number: 5/855,957
Classifications
Current U.S. Class: D10/106
International Classification: D1005;