US PATENT SUBCLASS 52 / 423
.~ Shaft with dissimilar shell

Current as of: June, 1999
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52 /   HD   STATIC STRUCTURES (E.G., BUILDINGS)

415  DF  FACERS; E.G., MODULES, MUTUALLY BONDED BY INTERNAL SETTABLE MATERIAL SECTION {13}
423.~ Shaft with dissimilar shell

DEFINITION

Classification: 52/423

(under subclass 415) Structure wherein the assembled preformed modules form a straight, rigid construction having a limited closed periphery, said construction being greatly elongated relative to any lateral dimension and having a shell or covering which is made up of said modules.

SEE OR SEARCH THIS CLASS, SUBCLASS:

724, 725 and 727+, for a similar structure with a core within a dissimilar material shell.