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The ornamental design for a ceiling structure, as shown and described. |
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FIG. 1 is a perspective view of a ceiling structure showing my new design;
FIG. 2 is a side view thereof.
FIG. 3 is a top view thereof.
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Apr 19 1985 | S.A.R.L. Poilane | (assignment on the face of the patent) | / | |||
| Jun 28 1985 | POILANE, LIONEL | S A R L POILANE | ASSIGNMENT OF ASSIGNORS INTEREST | 004426 | /0821 |
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