US PATENT SUBCLASS 33 / 394
.~.~.~.~.~ Spring biased

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

300  DF  INDICATOR OF DIRECTION OF FORCE TRAVERSING NATURAL MEDIA {23}
365  DF  .~ Level or plumb, terrestrial gravitation responsive {9}
391  DF  .~.~ Pendulum {8}
392  DF  .~.~.~ Plumb line (i.e., flexible, line suspended plumb bob) {1}
393  DF  .~.~.~.~ Line take-up reel {1}
394.~.~.~.~.~ Spring biased

DEFINITION

Classification: 33/394

(under subclass 393) Device provided with resilient means for urging the line to a retracted position.