US PATENT SUBCLASS 404 / 85
.~ With means for alternative ground support by tool or transport means

Current as of: June, 1999
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404 /   HD   ROAD STRUCTURE, PROCESS, OR APPARATUS

83  DF  APPARATUS {17}
85.~ With means for alternative ground support by tool or transport means {1}
86  DF  .~.~> Tool attachment type

DEFINITION

Classification: 404/85

(under subclass 83) Device wherein a ground wheel (or wheel substitute such as a skid or runner) is so arranged that when said wheel is positioned to serve as a vehicular element, the road working tool does not contact the ground; and conversely, when said tool is operative with respect to the ground the wheel is inoperative as a vehicular element.

SEE OR SEARCH CLASS

172, Earth Working,

240, for similar structure and see notes thereunder for other loci.