US PATENT SUBCLASS 299 / 38.1
.~.~.~ Narrow, channel-forming type
Current as of:
June, 1999
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299 /
HD
MINING OR IN SITU DISINTEGRATION OF HARD MATERIAL
29
DF
HARD MATERIAL DISINTEGRATING MACHINES
{17}
36.1
DF
.~ Floor-working {3}
37.1
DF
.~.~ Reciprocating or oscillating cutter {2}
38.1
.~.~.~ Narrow, channel-forming type
DEFINITION
Classification: 299/38.1
Narrow channel-forming type:
(under subclass 37.1) Reciprocating or oscillating cutter in which the cutter is described as forming a slot which has a relatively small width in the horizontal extent.