US PATENT SUBCLASS 340 / 870.4
.~ With particular receiver (e.g., ratiometer)

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

870.01  DF  CONTINUOUSLY VARIABLE INDICATING (E.G., TELEMETERING) {15}
870.4.~ With particular receiver (e.g., ratiometer) {3}
870.41  DF  .~.~> Plural receivers
870.42  DF  .~.~> With feedback (e.g., reflex along line) {1}
870.44  DF  .~.~> With discharge device (e.g., CRT)

DEFINITION

Classification: 340/870.4

With particular receiver (e.g., ratiometer):

(under subclass 870.01) Subject matter comprising a receiver including recited indicating means or significant structure.

(1) Note. A ratiometer is an instrument which measures electrically the quotient of two quantities.

(2) Note. A receiver is analogous to an indicator for the purpose of this definition.

SEE OR SEARCH THIS CLASS, SUBCLASS:

870.02, for meter reading.