US PATENT SUBCLASS 455 / 435
.~.~ Registration

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

403  DF  RADIOTELEPHONE SYSTEM {12}
422  DF  .~ Zoned or cellular telephone system {14}
435.~.~ Registration

DEFINITION

Classification: 455/435

Registration:

(under subclass 422) Subject matter including a procedure by which a mobile station identifies itself to the radiotelephone system as being located within its service area.