US PATENT SUBCLASS 52 / 373
.~.~.~ Shell with fastener-retaining feature

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

364  DF  INSTALLED SCREED OR UNIT WITH SPECIFIED FEATURE RETAINING PENETRATING FASTENER {5}
367  DF  .~ Stonelike material base type; e.g., concrete set {5}
372  DF  .~.~ Locked together base and receiver {2}
373.~.~.~ Shell with fastener-retaining feature {1}
374  DF  .~.~.~.~> Filler

DEFINITION

Classification: 52/373

(under subclass 372) Structure including a hollow member which has an internal configuration or means, acting to retain the fastener.