US PATENT SUBCLASS 404 / 79
.~ Heating

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

72  DF  PROCESS {6}
79.~ Heating {1}
80  DF  .~.~> Including separate handling of different sized aggregate

DEFINITION

Classification: 404/79

(under subclass 72) Process including the application of external means to raise the temperature of road building material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

77, for processes of in situ road heating (and see notes thereunder).

95, for apparatus to heat earth or road surface.