US PATENT SUBCLASS 14 / *
.~.~ Bridge operated

Current as of: June, 1999
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14 /   HD   BRIDGES

31  DF  DRAW {10}
50  DF  .~ Gates {2}
*.~.~ Bridge operated {2}
*  DD  .~.~.~> Displacement {4}
*  DD  .~.~.~> Shaft rotation {4}