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Class Information
Number: 116/95
Name: Signals and indicators > Alarms > Burglar > Closure operated > Door and window > Single-stroke bell
Description: Bells and gongs upon which a single stroke is given by each opening of a door or window.

Sub-classes under this class:

Class Number Class Name Patents
116/96 Door knob 0

Patents under this class:

Patent Number Title Of Patent Date Issued
4269136 Burglar alarm May. 26, 1981
4203383 Burglar alarm May. 20, 1980
4135474 Bell actuating mechanism Jan. 23, 1979

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