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The ornamental design for a telephone switchboard housing, as shown and described. |
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FIG. 1 is a perspective view of a telephone switchboard housing, showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof; and
FIG. 4 is a side elevational view thereof, the opposite side being a mirror image of the side shown.
The undisclosed rear portions of the switchboard housing are plain and unornamented.
| Patent | Priority | Assignee | Title |
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| D272624, | Nov 23 1981 | AT&T TELETYPE CORPORATION A CORP OF DE | Teleprinter keyboard |
| D273954, | Oct 28 1981 | Nortel Networks Limited | Attendant console |
| D277477, | Mar 26 1982 | Siemens Corporation | Telephone busy lamp field console |
| D277478, | Mar 26 1982 | Siemens Corporation | Telephone attendant console |
| D328300, | May 25 1990 | Nitsuko Corporation | Extension ringing console apparatus for telephone sets |
| Patent | Priority | Assignee | Title |
| 3819870, | |||
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Dec 17 1980 | GEORGOPULOS THOMAS | GTE AUTOMATIC ELECTRIC LABORATORIES INCORPORATED, NORTHLAKE, IL , A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 003847 | /0688 | |
| Dec 29 1980 | GTE Automatic Electric Labs Inc. | (assignment on the face of the patent) | / | |||
| May 24 1982 | GTE Automatic Electric Laboratories Incorporated | GTE AUTOMATIC ELECTRIC INCORPORATED, A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 004081 | /0217 | |
| Dec 28 1988 | GTE Communication Systems Corporation | AG COMMUNICATION SYSTEMS CORPORATION, 2500 W UTOPIA RD , PHOENIX, AZ 85027, A DE CORP | ASSIGNMENT OF ASSIGNORS INTEREST | 005060 | /0501 |
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