US PATENT SUBCLASS 52 / 270
.~ Walls of modular construction

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

261  DF  THREE-WAY CORNER CONSTRUCTION (E.G., TWO WALLS AND A FLOOR) {5}
270.~ Walls of modular construction {1}
271  DF  .~.~> Joint key between superimposed modules

DEFINITION

Classification: 52/270

(under subclass 261) Structure in which at least one wall structure is composed of preformed modules.