US PATENT SUBCLASS 33 / 384
.~.~.~.~ Liquid container adjustable on reference-surface section

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}
377  DF  .~.~ Liquid type, upper surface utilizing {2}
379  DF  .~.~.~ Bubble {5}
384.~.~.~.~ Liquid container adjustable on reference-surface section {2}
385  DF  .~.~.~.~.~> Cam-type adjuster (e.g., gear, screw, wedge, etc. {2}
388  DF  .~.~.~.~.~> Adjustment indicium

DEFINITION

Classification: 33/384

(under subclass 379) Device wherein the nearly filled receptacle is supported by a member having a surface of reference, usually adapted to be placed against a workpiece, the support being such as to provide for adjustment of the receptacle with respect to said surface.

SEE OR SEARCH THIS CLASS, SUBCLASS:

374+, for a level of plumb having relatively movable, coacting reference surface sections.