US PATENT SUBCLASS 536 / 121
.~.~ Metal containing

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
1.11  DF  .~ Carbohydrates or derivatives {15}
121.~.~ Metal containing

DEFINITION

Classification: 536/121

(under subclass 1.1) Compounds which include metal.

(1) Note. For the purpose of this subclass arsenic is considered to be a metal while silicon, selenium, and tellurium are not metals.