Radio direction finder

Description

FIG. 1 is a front perspective view of a radio direction finder showing my new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D176453 December 1955 Fowler
D188106 June 1960 Sundberg
D193850 October 1962 Powel
D193931 October 1962 Bagshaw
D213701 April 1969 Leeming
D219741 January 1971 Warren
D224022 June 1972 Warren
D230610 March 1974 Warren
3115635 December 1963 Leeming
3469262 September 1969 Frieling
Other references
  • Radio & TV News, Jun. 1957, pp. 42-44, Radio Direction Finder. Overseas Associated, Inc., Portable Location Plotter.
Patent History
Patent number: D255879
Type: Grant
Filed: May 3, 1978
Date of Patent: Jul 15, 1980
Assignee: A.P.T. Electronics Limited (Reading)
Inventor: Peter J. Price (Camberley)
Primary Examiner: Nelson C. Holtje
Attorneys: Louis E. Marn, Elliot M. Olstein
Application Number: 5/902,787
Classifications
Current U.S. Class: Angle Or Direction (7) (D10/65)
International Classification: D1004;