Hand-held tone generator

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Description

FIG. 1 is a perspective view of a hand-held tone generator, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a side elevational view thereof, the opposite side elevational view being identical thereto;

FIG. 4 is a rear elevational view thereof; and,

FIG. 5 is an end elevational view thereof.

Referenced Cited
U.S. Patent Documents
D191564 October 1961 Mullin et al.
D298773 November 29, 1988 Eckstein et al.
2516945 May 1939 Huth et al.
3105876 October 1963 Mullin et al.
3588358 June 1971 Estes
4567881 February 4, 1986 Heller
4688582 August 25, 1987 Heller et al.
Patent History
Patent number: D324913
Type: Grant
Filed: Jan 12, 1990
Date of Patent: Mar 24, 1992
Assignee: Starkey Laboratories, Inc. (Eden Prairie, MN)
Inventor: Sunil Chojar (Chanhassen, MN)
Primary Examiner: Stella Reid
Attorney: David H. Semmes
Application Number: 7/464,044
Classifications
Current U.S. Class: Auricular (D24/151)