US PATENT SUBCLASS 428 / 452
.~.~ Next to cellulosic

Current as of: June, 1999
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428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

411.1  DF  COMPOSITE (NONSTRUCTURAL LAMINATE) {25}
446  DF  .~ Of silicon containing (not as silicon alloy) {6}
452.~.~ Next to cellulosic {1}
453  DF  .~.~.~> Sodium silicate

DEFINITION

Classification: 428/452

(under subclass 446) Product in which a layer adjacent the silicon-containing layer comprises a cellulosic* material.