US PATENT SUBCLASS 92 / 37
.~ Plural bellows


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

34  DF  BELLOWS TYPE EXPANSIBLE CHAMBER {10}
37.~ Plural bellows {2}
38  DF  .~.~> Non-working liquid moved by first bellows effects movement of second bellows
39  DF  .~.~> With common movable wall


DEFINITION

Classification: 92/37

(under subclass 34) Apparatus comprising two or more bellows type expansible chamber devices.