US PATENT SUBCLASS 254 / 201
.~.~ Including fluid or spring driven cylinder

Current as of: June, 1999
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254 /   HD   IMPLEMENTS OR APPARATUS FOR APPLYING PUSHING OR PULLING FORCE

199  DF  PORTABLE IMPLEMENTS OR APPARATUS FOR TENSIONING FLEXIBLE MATERIAL OR FOR EXTRACTING STUMPS OR POLES {12}
200  DF  .~ Material comprises resilient floor covering (e.g., carpet) {8}
201.~.~ Including fluid or spring driven cylinder

DEFINITION

Classification: 254/201

Including fluid or spring driven cylinder:

(under subclass 200) Implements or apparatus wherein the portion of the implement or apparatus adapted to contact the resilient fabric or structure is moved by driving structure including a fluid or spring powered telescoping device.