US PATENT SUBCLASS 187 / 390
ALARM SYSTEM

Current as of: June, 1999
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187 /   HD   ELEVATOR, INDUSTRIAL LIFT TRUCK, OR STATIONARY LIFT FOR VEHICLE

390ALARM SYSTEM

DEFINITION

Classification: 187/390

ALARM SYSTEM:

(under the class definition) Subject matter which includes means to detect a dangerous condition and signal a warning in response thereto.

SEE OR SEARCH CLASS

116, Signals and Indicators,

68, for a mechanical alarm, per se, actuated by the motion of an elevator.

340, Communications: Electrical,

500+, for an electrical alarm system, per se.