US PATENT SUBCLASS 119 / 508
.~.~.~ Having heating means


Current as of: June, 1999
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119 /   HD   ANIMAL HUSBANDRY

416  DF  CONFINING OR HOUSING {11}
502  DF  .~ Pen or rack {6}
503  DF  .~.~ Hog farrowing pen {6}
508.~.~.~ Having heating means


DEFINITION

Classification: 119/508

Having heating means:

(under subclass 503) Subject matter including apparatus for raising the ambient temperature within the pen.