US PATENT SUBCLASS 33 / 501.12
.~.~ Internal

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

501  DF  GAUGE {61}
501.7  DF  .~ Tooth testing (e.g., gear, rack) {6}
501.12.~.~ Internal

DEFINITION

Classification: 33/501.12

Internal:

(under subclass 501.7) Subject matter wherein the teeth are on the inside surface of a passageway, cavity or hole.