(under subclass 58) Devices designed to catch thieves and burglars and prevent their escape and having no function additional to entrapping and sometimes raising an alarm.
SEE OR SEARCH THIS CLASS, SUBCLASS:
60+, and 64+, for animal-traps which might be used to catch thieves and burglars.
SEE OR SEARCH CLASS
49, Movable or Removable Closures, appropriate subclasses for closures of the type provided for.
105, Railway Rolling Stock,
394, for train-robber-trapping devices. 109, Safes, Bank Protection, or a Related Device,
3+, where the trap is manually actuated to release position by an outside intelligence; subclass 47 for devices wherein the safe itself is removed from the immediate position upon attack by an outside source; and subclasses 29+, especially subclasses 31 and 32 for fluid ejecting devices to prevent train robberies.
116, Signals and Indicators,
75, 99 for burglar-alarms if mechanically operated.
340, Communications: Electrical,
500+, for electric alarms which are automatically responsive to a condition. Note especially subclasses 541+ for intrusion detection, and subclass 574 for holdup detection.
