US PATENT SUBCLASS 493 / 918
.~.~ Expandable
Current as of:
June, 1999
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493 /
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MANUFACTURING CONTAINER OR TUBE FROM PAPER; OR OTHER MANUFACTURING FROM A SHEET OR WEB
916
DF
PLIABLE CONTAINER
{12}
917
DF
.~ Envelope {6}
918
.~.~ Expandable
DEFINITION
Classification: 493/918
Expandable:
(under subclass 917) Operation involving construction of a receptacle with easement means to provide greater interior volume to the receptacle.