US PATENT SUBCLASS 267 / 172
.~.~ Including cam

Current as of: June, 1999
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267 /   HD   SPRING DEVICES

166  DF  COIL {6}
170  DF  .~ Including end thrust member {7}
172.~.~ Including cam

DEFINITION

Classification: 267/172

(under subclass 170) Spring device and means having a surface movable along a path intersecting a position of the end thrust member for thrust reaction momentary engagement therewith.