US PATENT SUBCLASS 379 / 197
.~.~ Central office

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


379 /   HD   TELEPHONIC COMMUNICATIONS

188  DF  CALL OR TERMINAL ACCESS ALARM OR CONTROL {5}
196  DF  .~ At switching center {2}
197.~.~ Central office

DEFINITION

Classification: 379/197

Central office:

(under subclass 196) Subject matter wherein the switching center is a central office.