US PATENT SUBCLASS 175 / 6
.~ Boring with underwater tool drive prime mover

Current as of: June, 1999
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175 /   HD   BORING OR PENETRATING THE EARTH

5  DF  BORING A SUBMERGED FORMATION {5}
6.~ Boring with underwater tool drive prime mover

DEFINITION

Classification: 175/6

(under subclass 5) Subject matter, including a drive means for a boring tool, and in which said drive means is located below the surface of the water during the boring operation.

(1) Note. For the definition of "drive", see the class definition.

SEE OR SEARCH CLASS

114, Ships,

336, for submarines with life saving or salvage devices, and which may include means to bore into a sunken vessel.