US PATENT SUBCLASS 162 / 153
.~.~ Asbestos

Current as of: June, 1999
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162 /   HD   PAPER MAKING AND FIBER LIBERATION

100  DF  PROCESSES AND PRODUCTS {31}
152  DF  .~ Mineral fiber {2}
153.~.~ Asbestos {2}
154  DF  .~.~.~> With Portland cement
155  DF  .~.~.~> With organic additive

DEFINITION

Classification: 162/153

(under subclass 152) Processes and products which include asbestos fiber.

SEE OR SEARCH CLASS

588, Hazardous or Toxic Waste Destruction or Containment, appropriate subclasses dealing with asbestos.