US PATENT SUBCLASS 52 / 157
.~ Auger-type penetrator

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

155  DF  PIERCING OR EXPANDING EARTH ANCHOR {7}
157.~ Auger-type penetrator

DEFINITION

Classification: 52/157

(under subclass 155) Structure having means attached to, extending outwardly of and inclined relatively to the longitudinal axis of the element held, which means penetrates and acts to pull the element into the earth or base when the element held is rotated.