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The ornamental design for a keyboard, substantially as shown and described. |
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FIG. 1 is a top, left and front perspective view of a keyboard showing our new design;
FIG. 2 is a top, left and front perspective view thereof showing said keyboard in an operating position; and
FIG. 3 is a top, right and rear perspective view thereof.
Stram, John V., Baechtle, Charles P.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Aug 02 1976 | International Business Machines Corp. | (assignment on the face of the patent) | / | |||
| Mar 26 1991 | International Business Machines Corporation | IBM INFORMATION PRODUCTS CORPORATION, 55 RAILROAD AVENUE, GREENWICH, CT 06830 A CORP OF DE | ASSIGNMENT OF ASSIGNORS INTEREST | 005678 | /0098 | |
| Mar 27 1991 | IBM INFORMATION PRODUCTS CORPORATION | MORGAN BANK | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 005678 | /0062 |
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