US PATENT SUBCLASS 404 / 84.1
.~.~ Of material leveling means

Current as of: June, 1999
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404 /   HD   ROAD STRUCTURE, PROCESS, OR APPARATUS

83  DF  APPARATUS {17}
84.05  DF  .~ Automatic control {1}
84.1.~.~ Of material leveling means {3}
84.2  DF  .~.~.~> Adjusted to a predetermined path
84.5  DF  .~.~.~> Adjusted to an acoustical or optical signal
84.8  DF  .~.~.~> Specific to a sloped or curved application

DEFINITION

Classification: 404/84.1

Of material leveling means:

(under subclass 84.05) Automatic control wherein the sensor causes adjustment of a screeding or smoothing device.