US PATENT SUBCLASS 33 / 275 G
.~.~ With gyroscope

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

227  DF  STRAIGHT-LINE LIGHT RAY TYPE {20}
275 R  DF  .~ Combined {1}
275 G.~.~ With gyroscope

Unofficial Alpha Subclasses: R G

DEFINITION

Classification: 33/275

(under subclass 227) Device comprising a device in addition

to or combined with the straight line light ray type instrument (1) having functions other than determining the characteristics or mutual relations of points, lines, angles, surfaces and solids or (2) serving to perfect the instrument for its intended function.