US PATENT SUBCLASS 33 / 669
.~.~ Plural markers

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

501  DF  GAUGE {61}
666  DF  .~ With point marker {7}
669.~.~ Plural markers

DEFINITION

Classification: 33/669

Plural markers:

(under subclass 666) Subject matter wherein there are at least two visual markers or point marker guides.