US PATENT SUBCLASS 361 / 185
.~.~.~ Phase

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

Internet Version by PATENTEC © 1999      Terms of Use


361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

139  DF  CONTROL CIRCUITS FOR ELECTROMAGNETIC DEVICES {7}
160  DF  .~ For relays or solenoids {11}
170  DF  .~.~ Condition responsive (e.g., external circuit condition) {9}
185.~.~.~ Phase

DEFINITION

Classification: 361/185

Phase:

(under subclass 170) Subject matter wherein a circuit or device which responds to a particular phase of a current or voltage signal is used to initiate the operation of the relay.