US PATENT SUBCLASS 33 / 393
.~.~.~.~ Line take-up reel

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}
391  DF  .~.~ Pendulum {8}
392  DF  .~.~.~ Plumb line (i.e., flexible, line suspended plumb bob) {1}
393.~.~.~.~ Line take-up reel {1}
394  DF  .~.~.~.~.~> Spring biased

DEFINITION

Classification: 33/393

(under subclass 392) Device including means about which the

flexible line is wound for storage or for adjusting effective line length.