US PATENT SUBCLASS 403 / 51
.~ With additional connection or packing

Current as of: June, 1999
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403 /   HD   JOINTS AND CONNECTIONS

50  DF  FLEXIBLE DIAPHRAGM OR BELLOWS {1}
51.~ With additional connection or packing

DEFINITION

Classification: 403/51

(under subclass 50) Structure comprising a connecting means or packing between the two members in addition to the diaphragm or bellows.