US PATENT SUBCLASS 114 / 55
.~.~ Sand and mud loosening

Current as of: June, 1999
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114 /   HD   SHIPS

44  DF  VESSEL RAISING AND DOCKING {3}
50  DF  .~ Submerged {3}
55.~.~ Sand and mud loosening

DEFINITION

Classification: 114/55

Devices or means for removing the sand or mud about a submerged hull.