US PATENT SUBCLASS 175 / 86
WITH BELOW-GROUND PERSONAL ACCOMMODATION

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

86WITH BELOW-GROUND PERSONAL ACCOMMODATION

DEFINITION

Classification: 175/86

(under the class definition) Apparatus combined with means positioned within a hole being bored for supporting,

enclosing, protecting or otherwise accommodating a person in the hole while it is being bored.

SEE OR SEARCH THIS CLASS, SUBCLASS:

219, and the search there noted for above ground apparatus in general with particular accommodations for personnel.