US PATENT SUBCLASS 33 / 369
.~.~ Line level type

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

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
365  DF  .~ Level or plumb, terrestrial gravitation responsive {9}
369.~.~ Line level type

DEFINITION

Classification: 33/369

(under subclass 365) Device including, or adapted to cooperate with, a line in such a manner as to indicate when the line is horizontal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

373, for a level or plumb provided with a clamp, loop or strap for encircling attachment to a workpiece.