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
Other references
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 |
- 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
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