US PATENT SUBCLASS 318 / 646
.~.~ With force or weight measuring instruments

Current as of: June, 1999
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318 /   HD   ELECTRICITY: MOTIVE POWER SYSTEMS

560  DF  POSITIONAL SERVO SYSTEMS (E.G., SERVOMECHANISMS) {23}
638  DF  .~ With particular "error-detecting" means {13}
646.~.~ With force or weight measuring instruments

DEFINITION

Classification: 318/646

(under subclass 638) Subject matter in which the error detecting means is a force or weight measuring instrument.

SEE OR SEARCH CLASS

73, Measuring and Testing,

769+, for specific circuit structure in apparatus for measuring stress or strain.

340, Communications: Electrical,

666, for electrical communication systems automatically responsive to weight.

346, Recorders, 9+, for weight responsive recorders.