US PATENT SUBCLASS 455 / 93
.~ Convertible to different type (e.g., AM to FM)


Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

91  DF  TRANSMITTER {22}
93.~ Convertible to different type (e.g., AM to FM)


DEFINITION

Classification: 455/93

Convertible to different type (e.g., AM to FM):

(under subclass 91) Subject matter wherein the transmitter is constructed so that it may be changed from one type of transmitter to a different type of transmitter, such as, for example, changed from a crystal controlled to a tunable transmitter or change from FM to AM.

(1) Note. If one alternative is pulse, e.g., digital transmission, the system is classified in Class 375.

SEE OR SEARCH CLASS

375, Pulse or Digital Communications,

216, for transmitters convertible to/from pulse modulated carrier wave.