US PATENT SUBCLASS 200 / 61.63
.~.~.~ Letter slot or box

Current as of: June, 1999
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200 /   HD   ELECTRICITY: CIRCUIT MAKERS AND BREAKERS

52 R  DF  SPECIAL APPLICATION {25}
61.58 R  DF  .~ Actuated concurrently with operation or use of art device {8}
61.62  DF  .~.~ Closure, closure operator or accessory {8}
61.63.~.~.~ Letter slot or box

DEFINITION

Classification: 200/61.63

(under subclass 61.62) Devices in which the closure member or closure operator is associated with a mail slot or receptacle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

61.59, for letter boxes which comprise circuit controlling means which respond to the insertion or presence of a letter in the box in addition to or instead of means responsive to the movement of a closure or its operator.

SEE OR SEARCH CLASS

232, Deposit and Collection Receptacles,

35, 36 and 37 for alarms signals and indicators operated by the movement of letter box doors.

340, Communications: Electrical, 569, for alarms operated during placement or removal of contents of mail boxes.