US PATENT SUBCLASS 71 / 59
.~.~.~.~ With alkali metal or ammonium compound

Current as of: June, 1999
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71 /   HD   CHEMISTRY: FERTILIZERS

1  DF  PROCESSES AND PRODUCTS {5}
31  DF  .~ Inorganic material {5}
54  DF  .~.~ Nitrogen-containing (except ammonium) {2}
58  DF  .~.~.~ Nitrates {2}
59.~.~.~.~ With alkali metal or ammonium compound

DEFINITION

Classification: 71/59

(under subclass 58) Processes and products which include, additionally, alkali metal or ammonium values.