US PATENT SUBCLASS 379 / 163
.~.~ Electronic

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

156  DF  MULTI-LINE OR KEY SUBSTATION SYSTEM WITH SELECTIVE SWITCHING AND CENTRAL SWITCHING OFFICE CONNECTION {7}
162  DF  .~ Detail of hold circuitry {1}
163.~.~ Electronic

DEFINITION

Classification: 379/163

Electronic:

(under subclass 162) Subject matter having a discharge or solid state device.