US PATENT SUBCLASS 379 / 303
.~.~.~.~ Coordinate system (e.g., X-Y)

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

242  DF  CENTRALIZED SWITCHING SYSTEM {15}
258  DF  .~ Switching controlled in response to called station addressing signal {9}
298  DF  .~.~ Direct control {3}
299  DF  .~.~.~ Step-by-step system {4}
303.~.~.~.~ Coordinate system (e.g., X-Y)

DEFINITION

Classification: 379/303

Coordinate system (e.g., X-Y):

(under subclass 299) Subject matter having a movable circuit completing element, the motion of which has two perpendicular components.

SEE OR SEARCH THIS CLASS, SUBCLASS:

302, for a step-by-step coordinate system where one of the components is angle of rotation.