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The ornamental design for a switching exchange for telephone and/or data communication, substantially as shown and described. |
FIG. 1 is a front perspective view of a switching exchange for telephone and/or data communication showing my new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Feb 08 1984 | CEDERBERG, HOWARD R | BNR INC , | ASSIGNMENT OF ASSIGNORS INTEREST | 004236 | /0897 | |
Feb 14 1984 | Northern Telecom Limited | (assignment on the face of the patent) | / | |||
Feb 24 1984 | BNR, INC | BELL-NORTHERN RESEARCH LTD , | ASSIGNMENT OF ASSIGNORS INTEREST | 004236 | /0898 | |
Feb 24 1984 | BELL-NORTHERN RESEARCH LTD | BNR INC , | ASSIGNMENT OF ASSIGNORS INTEREST | 004236 | /0899 | |
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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