US PATENT SUBCLASS 369 / 20
.~ By diverse art device

Current as of: June, 1999
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369 /   HD   DYNAMIC INFORMATION STORAGE OR RETRIEVAL

19  DF  CONTROL BY TIMER OR EXTERNAL EXTRANEOUS CONDITION {1}
20.~ By diverse art device {2}
21  DF  .~.~> In vehicle or elevator
22  DF  .~.~> Audible indicator {1}

DEFINITION

Classification: 369/20

By diverse art device:

(under subclass 19) Subject matter wherein the operating condition is controlled by apparatus having utility other than to perfect the storage or retrieval of a signal.

(1) Note. Detailed structure of the diverse art device is classified therewith.

SEE OR SEARCH THIS CLASS, SUBCLASS:

70, for control of diverse art device by storage or retrieval device.

SEE OR SEARCH CLASS

340, Communications: Electrical,

692, for a sound reproducer controlled by an alarm circuit. 434, Education and Demonstration,

366, for abnormal condition simulating devices.