US PATENT SUBCLASS 175 / 122
WITH MEANS TO FEED DRIVE


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

122WITH MEANS TO FEED DRIVE


DEFINITION

Classification: 175/122

(under the class definition) Apparatus including a means to feed the tool drive means.

(1) Note. For the meaning of "feed" and "drive" see the class definition.

(2) Note. If the means is disclosed as performing the function of feeding the tool drive, the means is classified herein whether or not the tool drive is claimed.

SEE OR SEARCH THIS CLASS, SUBCLASS:

162, and search there noted for above ground means to feed a tool.

SEE OR SEARCH CLASS

173, Tool Driving or Impacting, 141, and see the search notes therein for a tool advance causing or controlling means.