US PATENT SUBCLASS 52 / 765
.~.~ Attaching device with piercing means

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

474  DF  FACER HELD BY STIFFENER-TYPE FRAME {11}
764  DF  .~ Facer attached between exposed frame members {11}
765.~.~ Attaching device with piercing means

DEFINITION

Classification: 52/765

Attaching device with piercing means:

(under subclass 764) Structure wherein the facer retaining means includes as an integral part thereof, or has preassembled therewith, a member which pierces the sustainer or the facer to attach the retaining means thereto.