US PATENT SUBCLASS 379 / 93.02
.~.~ Access restricting

Current as of: June, 1999
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379 /   HD   TELEPHONIC COMMUNICATIONS

90.01  DF  TELEPHONE LINE OR SYSTEM COMBINED WITH DIVERSE ELECTRICAL SYSTEM OR SIGNALLING (E.G., COMPOSITE) {8}
93.01  DF  .~ Having transmission of a digital message signal over a telephone line {9}
93.02.~.~ Access restricting {2}
93.03  DF  .~.~.~> Personal identification
93.04  DF  .~.~.~> Two or more calls

DEFINITION

Classification: 379/93.02

Access restricting:

(under subclass 93.01) Subject matter which permits or denies the rights to use remote digital computing or communication equipment.

SEE OR SEARCH CLASS

380, Cryptography,

4, for digital communications usage restriction.

707, Data Processing: Database and File Management, Data Structures, Or Document Processing,

9, for privileged access to a database or file in a computer environment.

710, Electrical Computers and Digital Data Processing Systems: Input/Output,

36+, for digital data processing system Input/Out access regulating and subclasses 107+ for bus access regulating in a digital data processing system.