US PATENT SUBCLASS 568 / 6
.~.~ Sulfur, oxygen, halogen or Group IA or IIA light metal containing

Current as of: June, 1999
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568 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
1  DF  .~ BORON CONTAINING {4}
6.~.~ Sulfur, oxygen, halogen or Group IA or IIA light metal containing

DEFINITION

Classification: 568/6

(under subclass 1) Compounds which contain sulfur, oxygen, halogen, or a metal selected from Group IA or IIA of the

Periodic Table having a specific gravity less than four.