US PATENT SUBCLASS 33 / 282
.~ Vertical angle


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



33 /   HD   GEOMETRICAL INSTRUMENTS

227  DF  STRAIGHT-LINE LIGHT RAY TYPE {20}
282.~ Vertical angle {2}
283  DF  .~.~> Having gravity responsive indicating means (e.g., pendulum, etc.)
284  DF  .~.~> Including distance finding feature


DEFINITION

Classification: 33/282

(under subclass 227) Device for measuring an angle which is in a plane perpendicular to the plane of the horizon.