US PATENT SUBCLASS 600 / 140
.~.~ Plural layers


Current as of: June, 1999
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600 /   HD   SURGERY

101  DF  ENDOSCOPE {29}
139  DF  .~ Having flexible tube structure {6}
140.~.~ Plural layers


DEFINITION

Classification: 600/140

Plural layers:

(under subclass 139) Subject matter wherein the flexible tube-like structure is composed of more than a single thickness of material throughout its extent.