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The ornamental design for the exhaust duct, as shown. |
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FIG. 1 is a perspective view of the duct;
FIG. 2 is a top view of the duct;
FIG. 3 is a bottom view of the duct;
FIG. 4 is a side view of the duct;
FIG. 5 is a rear view of the duct; and,
FIG. 6 is a front view of the duct.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Mar 02 1994 | CREYTS, DON S | Lockheed Corporation | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 006905 | /0768 | |
| Mar 07 1994 | Lockheed Corporation | (assignment on the face of the patent) | / | |||
| Jan 28 1996 | Lockheed Corporation | Lockheed Martin Corporation | MERGER SEE DOCUMENT FOR DETAILS | 015386 | /0365 |
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