US PATENT SUBCLASS 423 / 367
.~.~ And iron containing (e.g., ferrocyanide, etc.)


Current as of: June, 1999
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423 /   HD   CHEMISTRY OF INORGANIC COMPOUNDS

351  DF  NITROGEN OR COMPOUND THEREOF (EXCEPT AMMONIUM SALT OF NON-NITROGEN ACID) {5}
364  DF  .~ Carbon containing {7}
367.~.~ And iron containing (e.g., ferrocyanide, etc.)


DEFINITION

Classification: 423/367

(under subclass 364) Products or processes wherein the product also contains iron.