US PATENT SUBCLASS 455 / 407
.~.~.~ At subscriber unit


Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

403  DF  RADIOTELEPHONE SYSTEM {12}
405  DF  .~ Usage measurement {2}
406  DF  .~.~ Billing {2}
407.~.~.~ At subscriber unit


DEFINITION

Classification: 455/407

At subscriber unit:

(under subclass 406) Subject matter wherein the billing is performed at the radiotelephone terminal.