US PATENT SUBCLASS 33 / 747
.~.~.~ Opposed rotating surfaces

Current as of: June, 1999
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33 /   HD   GEOMETRICAL INSTRUMENTS

700  DF  DISTANCE MEASURING {13}
732  DF  .~ Of flexible material {7}
734  DF  .~.~ By rolling contact {11}
747.~.~.~ Opposed rotating surfaces {1}
748  DF  .~.~.~.~> Plural {1}

DEFINITION

Classification: 33/747

Opposed rotating surfaces:

(under subclass 734) Subject matter wherein the material is moved between rotatable members.