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The ornamental design for a telephone headset hearing aid, substantially as shown and described. |
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FIG. 1 is a front, partial top and right side perspective view of a telephone handset hearing aid showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a bottom plan view thereof; and
FIGS. 6 and 7 are respectively right and left side elevational views thereof.
Wojcik, Jacek J., Przybysz, Andrzej, Milton, Peter R.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jul 25 1984 | WOJCIK, JACEK J | Bell Canada | ASSIGNMENT OF ASSIGNORS INTEREST | 004352 | /0859 | |
| Jul 25 1984 | PRZYBYSZ, ANDRZEJ | Bell Canada | ASSIGNMENT OF ASSIGNORS INTEREST | 004352 | /0859 | |
| Jul 25 1984 | MILTON, PETER R | Bell Canada | ASSIGNMENT OF ASSIGNORS INTEREST | 004352 | /0859 | |
| Jul 31 1984 | Northern Telecom Limited | (assignment on the face of the patent) | / | |||
| Aug 20 1984 | Bell Canada | Northern Telecom Limited | ASSIGNMENT OF ASSIGNORS INTEREST | 004352 | /0860 | |
| Apr 29 1999 | Northern Telecom Limited | Nortel Networks Corporation | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 010567 | /0001 | |
| Aug 30 2000 | Nortel Networks Corporation | Nortel Networks Limited | CHANGE OF NAME SEE DOCUMENT FOR DETAILS | 011195 | /0706 |
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