US PATENT SUBCLASS 71 / 19
.~.~.~ Bone

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}
15  DF  .~.~ From animal matter {6}
19.~.~.~ Bone {1}
20  DF  .~.~.~.~> With other organic matter

DEFINITION

Classification: 71/19

(under subclass 15) and including animal matter derived from

bone as the only type of animal matter present.