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The ornamental design for a control unit for an alarm system, as shown and described. |
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FIG. 1 is a front, side and top perspective view of the control unit for an alarm system showing our new design;
FIG. 2 is a side elevational view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
Caldwell, Gary, Caldwell, Evaline L.
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