US PATENT SUBCLASS 568 / 12
.~.~ Ring phosphorus containing


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

Internet Version by PATENTEC © 1999      Terms of Use



568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
8  DF  .~ PHOSPHORUS CONTAINING {5}
12.~.~ Ring phosphorus containing


DEFINITION

Classification: 568/12

(under subclass 8) Compounds in which phosphorus is a ring member.