US PATENT SUBCLASS 52 / 566
.~ Header unit traverses course

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

561  DF  LATERALLY RELATED, INDIVIDUALLY ASSEMBLED COURSES {4}
566.~ Header unit traverses course {1}
567  DF  .~.~> Internal lock-head on header unit

DEFINITION

Classification: 52/566

(under subclass 561) Structure in which the laterally related course modules are connected by a transverse unit which passes between and through the modules of a course.

SEE OR SEARCH THIS CLASS, SUBCLASS:

503+, for related structures which form a through passage.