US PATENT SUBCLASS 285 / 123.11
.~.~.~.~ Having slip means actuator


Current as of: June, 1999
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285 /   HD   PIPE JOINTS OR COUPLINGS

120.1  DF  HAVING PLURAL INDEPENDENT PATHS {4}
123.1  DF  .~ For concentric tubes or pipes (e.g., well casing or wellhead type) {4}
123.3  DF  .~.~ Having single suspended inner tube {3}
123.5  DF  .~.~.~ Having inner tube anchored by slip means {2}
123.11.~.~.~.~ Having slip means actuator


DEFINITION

Classification: 285/123.11

Having slip means actuator:

(under subclass 123.5) Subject matter including means for moving the member into and out of engagement with the wall.