US PATENT SUBCLASS 405 / 230
.~ Underpinning

Current as of: June, 1999
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405 /   HD   HYDRAULIC AND EARTH ENGINEERING

229  DF  FOUNDATION {2}
230.~ Underpinning

DEFINITION

Classification: 405/230

Underpinning:

(under subclass 229) Method or apparatus wherein the stable base is formed or positioned under an existing construction after which the weight of said construction is transferred to said stable base.