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The ornamental design for a lightpipe, as shown and described. |
FIG. 1 is a perspective view of a lightpipe embodying the features of the design;
FIG. 2 is an opposite perspective view showing the roughened rectangular surfaces of the lightpipe thereof;
FIG. 3 is a front elevation thereof to a slightly smaller scale;
FIG. 4 is a rear elevation thereof;
FIG. 5 is a plan view; and,
FIG. 6 is a right side elevation thereof drawn to a larger scale.
Brown, Michael, Chu, Pak-Jong, Sonderegger, Mark
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Jul 16 1998 | SONDEREGGER, MARK | Northern Telecom Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009393 | /0479 | |
Jul 16 1998 | CHU, PAK-JONG | Northern Telecom Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009393 | /0479 | |
Jul 27 1998 | BROWN, MICHAEL | Northern Telecom Limited | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 009393 | /0479 | |
Aug 12 1998 | Nortel Networks Corporation | (assignment on the face of the patent) | / | |||
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