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The ornamental design for an optical add-drop multiplexer, as shown and described.
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FIG. 1 is a perspective view of an optical add-drop multiplexer showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevation view thereof;
FIG. 5 is a right side view thereof, a left side view thereof being a mirror image; and,
FIG. 6 is a rear elevation view thereof.
Shiraishi, Makoto, Katsuyama, Yutaka, Sakaguchi, Keiji
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
May 14 2004 | SHIRAISHI, MAKOTO | J S T MFG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015481 | /0443 | |
May 14 2004 | SAKAGUCHI, KEIJI | J S T MFG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015481 | /0443 | |
May 21 2004 | KATSUYAMA, YUTAKA | J S T MFG CO , LTD | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 015481 | /0443 | |
Jun 15 2004 | J.S.T. Mfg. Co., Ltd. | (assignment on the face of the patent) | / |
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