US PATENT SUBCLASS 92 / 45
.~ Superposed peripherally interconnected elements

Current as of: June, 1999
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92 /   HD   EXPANSIBLE CHAMBER DEVICES

34  DF  BELLOWS TYPE EXPANSIBLE CHAMBER {10}
45.~ Superposed peripherally interconnected elements {1}
46  DF  .~.~> With nonmetallic portion

DEFINITION

Classification: 92/45

(under subclass 34) Apparatus in which the pleated portion includes a pair of superposed ring shaped elements having the inner peripheral portion thereof secured together.