US PATENT SUBCLASS 137 / 636.1
.~.~ Oppositely movable cam surfaces

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

561 R  DF  SYSTEMS {32}
636  DF  .~ With selective motion for plural valve actuator {4}
636.1.~.~ Oppositely movable cam surfaces

DEFINITION

Classification: 137/636.1

(under subclass 636) Devices which select by means of oppositely movable or usable cam or eccentric surfaces.