US PATENT SUBCLASS 116 / 82
.~.~.~ Floor supported

Current as of: June, 1999
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116 /   HD   SIGNALS AND INDICATORS

67 R  DF  ALARMS {15}
75  DF  .~ Burglar {5}
77  DF  .~.~ Portable {7}
82.~.~.~ Floor supported

DEFINITION

Classification: 116/82

(under subclass 77) Devices which are placed upon the floor of a room and are actuated by the impact of an opening door.

(1) Note. Many of these devices also act as door securers.

SEE OR SEARCH THIS CLASS, SUBCLASS:

12+, for combined operation of burglar alarms and door securers.