US PATENT SUBCLASS 428 / 64.7
.~.~.~ Polycarbonate containing

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


428 /   HD   STOCK MATERIAL OR MISCELLANEOUS ARTICLES

64.1  DF  CIRCULAR SHEET OR CIRCULAR BLANK {8}
64.2  DF  .~ Recording medium or carrier {5}
64.4  DF  .~.~ Optical recording medium or carrier {5}
64.7.~.~.~ Polycarbonate containing

DEFINITION

Classification: 428/64.7

Polycarbonate containing:

(under subclass 64.4) Subject matter wherein the recording medium or carrier contains linear polyesters containing plural carbonic acid ester groups.