US PATENT SUBCLASS 52 / 525
.~.~.~ With tab

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

518  DF  LAPPED MULTIPLANAR SURFACING; E.G., SHINGLE TYPE {7}
519  DF  .~ Interfitted sections {14}
523  DF  .~.~ Edge and slit {2}
525.~.~.~ With tab

DEFINITION

Classification: 52/525

(under subclass 523) Structure in which one section is provided with a tab which is received by a slit in the other section.