Audio preamplifier

Description

FIG. 1 is a perspective view of an audio preamplifier according to the present design;

FIG. 2 is an elevational view of the left end of the audio preamplifier shown in FIG. 1;

FIG. 3 is an elevational view of the right end of the audio preamplifier shown in FIG. 1; and,

FIG. 4 is a front elevational view of the audio preamplifier shown in FIG. 1.

Referenced Cited
U.S. Patent Documents
D185413 June 1959 Browner
D209173 November 1967 Swee
D216394 December 1969 Blackwell
D220723 May 1971 Abbo
Patent History
Patent number: D378521
Type: Grant
Filed: Apr 12, 1995
Date of Patent: Mar 18, 1997
Inventor: Joseph R. Neuman (Bozeman, MT)
Primary Examiner: Sandra L. Morris
Assistant Examiner: Nanda Bondade
Attorney: Richard C. Conover
Application Number: 0/37,407