US PATENT SUBCLASS 217 / 97
.~ Moisteners

Current as of: June, 1999
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217 /   HD   WOODEN RECEPTACLES

72  DF  BARRELS {11}
97.~ Moisteners

DEFINITION

Classification: 217/97

(under subclass 72) Subject matter comprising means for keeping the vessel moist to prevent shrinkage by drying and consequent falling apart of the staves.