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The ornamental design for an inter-call device for telephone sets, as shown. |
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FIG. 1 is a top, front and right side perspective view of an inter-call device for telephone sets showing my new design,
FIG. 2 is a top plan view thereof,
FIG. 3 is a front elevational view thereof,
FIG. 4 is a rear elevational view thereof,
FIG. 5 is a bottom plan view thereof,
FIG. 6 is a left side elevational view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| May 11 1989 | ANDO, TAKAHARU | KABUSHIKI KAISHA TOSHIBA, ALSO TRADING AS TOSHIBA CORPORATION, 72, HORIKAWA-CHO, SAIWAI-KU, KAWASAKI-SHI, KANAGAWA-KEN, JAPAN | ASSIGNMENT OF ASSIGNORS INTEREST | 005087 | /0532 | |
| Jun 02 1989 | Kabushiki Kaisha Toshiba | (assignment on the face of the patent) | / |
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