US PATENT SUBCLASS 92 / 133
.~ Adjustable


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

130 R  DF  WITH SEPARATE BIASING MEANS FOR WORKING MEMBER {9}
133.~ Adjustable


DEFINITION

Classification: 92/133

(under subclass 130) Apparatus in which the amount of force exerted by said force exerting means on the working member may be selectively increased or decreased.

SEE OR SEARCH THIS CLASS, SUBCLASS:

95, for an adjustable biasing means for a flexible wall type working member.