US PATENT SUBCLASS 71 / 13
.~.~.~ With other organic material

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

1  DF  PROCESSES AND PRODUCTS {5}
11  DF  .~ Organic material-containing {6}
12  DF  .~.~ From sewage or night soil {1}
13.~.~.~ With other organic material

DEFINITION

Classification: 71/13

(under subclass 12) Patents in which other organic substances of fertilizer value are included. If such added organic values are hereinbelow listed, they are cross-referenced below.