US PATENT SUBCLASS 52 / 641
.~.~ Collapsible or demountable

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

633  DF  OPENWORK; E.G., TRUSS, TRELLIS, GRILLE, SCREEN, FRAME, OR REBAR CHAIR {12}
639  DF  .~ Curvilinear or peaked truss {5}
641.~.~ Collapsible or demountable

DEFINITION

Classification: 52/641

(under subclass 639) Structure having an arrangement of components or mating configurations on components specialized to enabling collapsing or disconnecting the component.

SEE OR SEARCH THIS CLASS, SUBCLASS:

127.1+, for a structure with adjunctive means useful only in assembly or disassembly of the structure, e.g., an access opening.