US PATENT SUBCLASS 52 / 46
.~ Continuous carline; e.g., discrete coextensive rafter

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

45  DF  RAILROAD CAR ROOF CONSTRUCTION {4}
46.~ Continuous carline; e.g., discrete coextensive rafter {6}
47  DF  .~.~> And longitudinal ridge
48  DF  .~.~> Purlin or cross-bracing
49  DF  .~.~> Superjacent covering strip
50  DF  .~.~> Laterally verging sections
51  DF  .~.~> Separate end fastener or support
52  DF  .~.~> Over juncture of covering sheets

DEFINITION

Classification: 52/46

(under subclass 45) Structure comprising a covering supporting member (carline) which extends laterally of the roof and is substantially coextensive with the transverse dimension of the car.