Audio amplifier
Yamakawa November 19, 1
U.S. patent number D321,689 [Application Number 07/360,707] was granted by the patent office on 1991-11-19 for audio amplifier. This patent grant is currently assigned to Yamaha Corporation. Invention is credited to Yoshiro Yamakawa.
| United States Patent | D321,689 |
| Yamakawa | November 19, 1991 |
Audio amplifier
Claims
The ornamental design for an audio amplifier, as shown and described.
| Inventors: | Yamakawa; Yoshiro (Tokyo, JP) |
|---|---|
| Assignee: | Yamaha Corporation (Shizuoka,
JP) |
| Appl. No.: | 07/360,707 |
| Filed: | June 1, 1989 |
Foreign Application Priority Data
| Dec 3, 1988 [JP] | 63-47350 | |||
| Current U.S. Class: | D14/188; D14/502 |
| Field of Search: | ;D14/136,156,163,165,168-171,175-176,188-198 ;455/92,100,128,344,350-351 ;312/7.1 |
References Cited [Referenced By]
U.S. Patent Documents
| D253823 | January 1980 | Rams |
| D275668 | September 1984 | Erber et al. |
| D293322 | December 1987 | Hoshino et al. |
| D314198 | January 1991 | Ito et al. |
Attorney, Agent or Firm: Weingarten, Schurgin, Gagnebin & Hayes
Description
FIG. 1 is a top, front and right side perspective view of an audio amplifier showing my new design;
FIG. 2 is a top, front and right perspective view thereof, shown with the cassette cover in the closed position;
FIG. 3 is a top plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof;
FIG. 7 is a rear elevational view thereof; and
FIG. 8 is a bottom plan view thereof.
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