US PATENT SUBCLASS 173 / 73
.~.~ Directed into passage in tool

Current as of: June, 1999
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173 /   HD   TOOL DRIVING OR IMPACTING

197  DF  WORK CLEANSING {10}
59  DF  .~ By motive fluid for drive motor or advance causing or controlling motor {7}
73.~.~ Directed into passage in tool

DEFINITION

Classification: 173/73

(under subclass 59) Apparatus having means to direct the motive fluid into a passage in a tool or tool shaft, from which passage the fluid is directed upon the work face.