US PATENT SUBCLASS 52 / 741.13
.~.~ Wall

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

741.1  DF  PROCESSES {14}
741.11  DF  .~ Requiring soil work {4}
741.13.~.~ Wall

DEFINITION

Classification: 52/741.13

Wall:

(under subclass 741.11) Subject matter wherein the construction requiring the soil work is a vertical barrier.