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The ornamental design for a passive infra-red sensor, as shown. |
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FIG. 1 is a side elevational view of a passive infra-red sensor, showing our new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is an elevational view of the side opposite that shown in FIG. 1;
FIG. 6 is a top plan view thereof.
Kotlicki, Yaacov, Kotlicki, Moshe
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