US PATENT SUBCLASS 92 / 22
.~ Relatively movable working members with interdependent means

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

15  DF  WITH RELEASABLE STOP OR LATCH MEANS TO PREVENT MOVEMENT OF WORKING MEMBER {8}
22.~ Relatively movable working members with interdependent means

DEFINITION

Classification: 92/22

(under subclass 15) Apparatus comprising two or more working members which are movable with respect to each other and movement preventing means to prevent movement of each of said working members, said movement preventing means for each of the working members being actuated by another of said working members.