US PATENT SUBCLASS 119 / 506
.~.~.~ Adjustable enclosure element for piglet escape passage

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}
506.~.~.~ Adjustable enclosure element for piglet escape passage

DEFINITION

Classification: 119/506

Adjustable enclosure element for piglet escape passage:

(under subclass 503) Subject matter comprising a positionable confining member which allows evasion by the piglets when in danger of crushing by the reclining sow.