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The ornamental design for a smoke detector, substantially as shown and described. |
FIG. 1 is a perspective view of the smoke detector according to the present invention;
FIG. 2 is a front elevational view of the smoke detector;
FIG. 3 is a top plan view of the smoke detector; and
FIG. 4 is a bottom plan view of the smoke detector.
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Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Apr 04 1978 | Electronic Security Systems, Inc. | (assignment on the face of the patent) | / | |||
Apr 07 1981 | MULTIRICH ENTERPRISE, U S A INCORPORATED | ELECTRONIC SECURITY SYSTEMS, INC , A CORP OF TEXAS | ASSIGNMENT OF ASSIGNORS INTEREST | 003869 | /0205 |
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