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The ornamental design for a telephone amplifier, substantially as shown and described. |
FIG. 1 is a front elevational view of a telephone amplifier showing my new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a plan view from above thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a left side elevational view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jun 06 1984 | YUEN, JOHN SE-KIT | John Manufacturing Limited | ASSIGNMENT OF ASSIGNORS INTEREST | 004284 | /0550 | |
Jul 10 1984 | John Manufacturing Ltd. | (assignment on the face of the patent) | / |
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