Radio direction finder

The ornamental design for a radio direction finder, as shown and described.

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.

Patent	Priority	Assignee	Title
D289616,	Aug 06 1984	General Research of Electronics, Inc.	Direction finding radio receiver
D314713,	Nov 18 1988	Mitac International Corp	Navigation device

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
May 03 1978		A.P.T. Electronics Limited	(assignment on the face of the patent)

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