US PATENT SUBCLASS 106 / 605
.~.~ Hollow, foam, cellular or porous materials containing

Current as of: June, 1999
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106 /   HD   COMPOSITIONS: COATING OR PLASTIC

*  DD  COATING OR PLASTIC COMPOSITIONS {40}
600  DF  .~ Alkali metal silicate containing {23}
605.~.~ Hollow, foam, cellular or porous materials containing

DEFINITION

Classification: 106/605

Hollow, foam, cellular or porous material containing:

(under subclass 600) Subject matter including hollow, foam, cellular or porous material, e.g., porous filler or aggregate, etc.