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Class Information
Number: 116/80
Name: Signals and indicators > Alarms > Burglar > Portable > Key or keyhole
Description: Devices in which means are provided whereby the key or keyhole is utilized in securing the device to the door, the alarm being actuated by the insertion, the attempt to insert, or the turning of the key in the keyhole.

Patents under this class:

Patent Number Title Of Patent Date Issued
7866195 Door lock indicator Jan. 11, 2011

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