US PATENT SUBCLASS 52 / 689
.~.~.~ Single seat

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}
677  DF  .~ Spacer-positioner; e.g., rebar chair {5}
687  DF  .~.~ Plural feet or seat {2}
689.~.~.~ Single seat

DEFINITION

Classification: 52/689

(under subclass 687) Structure comprising a single seat for engaging a primary reinforced member, including a single seat formed by two spaced sections which cooperate to form, in effect, a single seat.