US PATENT SUBCLASS 404 / 84.5
.~.~.~ Adjusted to an acoustical or optical signal

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  DF  .~.~ Of material leveling means {3}
84.5.~.~.~ Adjusted to an acoustical or optical signal

DEFINITION

Classification: 404/84.5

Adjusted to an acoustical or optical signal:

(under subclass 84.1) Automatic adjustment of leveling means wherein the adjustment is made to track an acoustical or optical signal, e.g., laser.