US PATENT SUBCLASS 280 / 164.1
.~.~.~ Combined devices

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
727  DF  .~ Attachment {22}
163  DF  .~.~ Steps {4}
164.1.~.~.~ Combined devices {1}
164.2  DF  .~.~.~.~> Steps combined with shoe scrapers

DEFINITION

Classification: 280/164.1

Combined devices:

(under subclass 163) Steps having a part or attachment for performing an additional purpose or function.