US PATENT SUBCLASS 220 / 254
.~ Secondary closure within parameter of primary closure
Current as of:
June, 1999
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220 /
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RECEPTACLES
200
DF
CLOSURES
{45}
254
.~ Secondary closure within parameter of primary closure
DEFINITION
Classification: 220/254
(under subclass 200) Device provided with a supplementary closure to close opening in primary closure.
