US PATENT SUBCLASS 299 / 1.5
.~.~ Floor working

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


299 /   HD   MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL

1.05  DF  AUTOMATIC CONTROL; SIGNALING OR INDICATING {4}
1.4  DF  .~ Of hard material disintegrating machines {3}
1.5.~.~ Floor working

DEFINITION

Classification: 299/1.5

Floor working:

(under subclass 1.4) Process or apparatus in which the cutter breaks up material on the lower limit of a working location as distinct from a sidewall, endwall, or roof.