US PATENT SUBCLASS 455 / 553
.~.~.~ Dual mode telephone (i.e., analog and digital)


Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

73  DF  TRANSMITTER AND RECEIVER AT SAME STATION (E.G., TRANSCEIVER) {9}
550  DF  .~ Radiotelephone equipment detail {17}
552  DF  .~.~ Operable on more than one system {1}
553.~.~.~ Dual mode telephone (i.e., analog and digital)


DEFINITION

Classification: 455/553

Dual mode telephone (i.e., analog and digital):

(under subclass 552) Subject matter wherein the radiotelephone contains components which allow communication with both continuous and discrete signal systems.