Non-electronic sound amplifier
Description
FIG. 1 is a perspective view of a non-electronic sound amplifier showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a right side elevational view thereof; and
FIG. 7 is a left side elevational view thereof.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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Patent History
Patent number: D310530
Type: Grant
Filed: Sep 21, 1988
Date of Patent: Sep 11, 1990
Inventor: Rex McGuire (Mountain Home, AR)
Primary Examiner: Bernard Ansher
Assistant Examiner: David Jeo
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/247,070
Type: Grant
Filed: Sep 21, 1988
Date of Patent: Sep 11, 1990
Inventor: Rex McGuire (Mountain Home, AR)
Primary Examiner: Bernard Ansher
Assistant Examiner: David Jeo
Law Firm: Burns, Doane, Swecker & Mathis
Application Number: 7/247,070
Classifications
Current U.S. Class:
Headphone Or Headset (D14/205)