US PATENT SUBCLASS 301 / 37.38
.~.~.~ Central thread

Current as of: June, 1999
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301 /   HD   LAND VEHICLES: WHEELS AND AXLES

5.1  DF  WHEEL {21}
37.1  DF  .~ With wheel cover {13}
37.37  DF  .~.~ Cover securing threaded means {1}
37.38.~.~.~ Central thread

DEFINITION

Classification: 301/37.38

Central thread:

(under subclass 37.37) Wheel wherein the helically ribbed means mates with the facing member or with the wheel about a helix coextensive with the wheel axis.

SEE OR SEARCH THIS CLASS, SUBCLASS:

108.5, for a hub cap secured to a hub by a central threaded means.