US PATENT SUBCLASS 116 / 10
.~.~.~.~ Combined knob and bell

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

2  DF  COMBINED FUNCTIONS {3}
6  DF  .~ Burglar alarms {4}
8  DF  .~.~ Locks {2}
9  DF  .~.~.~ Door-knob controlled {1}
10.~.~.~.~ Combined knob and bell

DEFINITION

Classification: 116/10

(under subclass 9) Devices in which the doorknob and bell are more or less of a unitary or combined structure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

153, for door knob contained bell.