Electrical testing instrument

- Earl Cooper Phifer
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Description

FIG. 1 is a front perspective view of an electrical testing instrument showing my new design; and

FIG. 2 is a rear perspective view thereof.

Referenced Cited
U.S. Patent Documents
1779946 October 1930 Nelson
1965837 July 1934 Herdeg
2609409 September 1952 Radeke
2771580 November 1956 Schott
3646579 February 1972 DiVita
3893028 July 1975 Febure
4041380 August 9, 1977 Epstein
Other references
  • CQ-Radio Amateurs Journal, 8/47, p. 7, Ohmmeter.
Patent History
Patent number: D251484
Type: Grant
Filed: Apr 8, 1977
Date of Patent: Apr 3, 1979
Assignee: Earl Cooper Phifer
Inventor: James L. Howard (Lancaster, SC)
Primary Examiner: Nelson C. Holtje
Attorney: Donald M. Seltzer
Application Number: 5/785,930
Classifications
Current U.S. Class: Electrical Property (D10/75); Element Or Attachment (4) (D10/103); Provided With Handle, Or Hand-held (D10/78)
International Classification: D1004;