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The ornamental design for a non-electronic sound amplifier, as shown. |
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FIG. 1 is a front and right side perspective view of a non-electronic sound amplifier showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right-side elevational view thereof, the left side being a mirror image;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a bottom plan view thereof.
| Patent | Priority | Assignee | Title |
| 5189265, | Mar 15 1991 | Cap with hearing enhancing structure | |
| 6571907, | Sep 11 2001 | The Jennings Company; JENNINGS COMPANY, THE | Portable acoustic hearing enhancement device |
| 8220585, | Nov 08 2010 | Non-electronic hearing aid | |
| D310530, | Sep 21 1988 | Non-electronic sound amplifier | |
| D397118, | Apr 15 1997 | Combined external directional sound dome reflector and deflector for motor vehicle speaker enclosure | |
| D667813, | Jun 16 2011 | Sound amplifying apparatus with adjustable headband for enhancing the hearing of a user | |
| D674492, | Nov 08 2010 | Non-electronic hearing aid | |
| D849248, | Nov 26 2017 | Hearing aid | |
| D909343, | Feb 07 2019 | B A N ENTERPRISES | Speaker sound diverter |
| Patent | Priority | Assignee | Title |
| 2537201, | |||
| 4574912, | Nov 14 1984 | Ear muff hearing aid | |
| D244467, | Sep 11 1975 | Soundmasters, Inc. | Sound intensifying receiver |
| D269611, | Feb 19 1981 | Sony Corporation | Headphones |
| D278431, | Aug 27 1982 | Acoustic reflector headset | |
| D286873, | Feb 29 1984 | Sony Corporation | Non-electronic sound amplifier headset or the like |
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Feb 06 1985 | IKEDA, TAMEAKI | SONY CORPORATION, A CORP OF JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 004371 | /0450 | |
| Feb 12 1985 | Sony Corporation | (assignment on the face of the patent) | / |
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