US PATENT SUBCLASS 405 / 117
.~.~.~.~ Earthen

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

52  DF  FLUID CONTROL, TREATMENT, OR CONTAINMENT {7}
80  DF  .~ Flow control {7}
107  DF  .~.~ Artificial water barrier (e.g., dam, levee, etc.) {7}
116  DF  .~.~.~ In situ construction {1}
117.~.~.~.~ Earthen

DEFINITION

Classification: 405/117

Earthen:

(under subclass 116) Method or apparatus concerning the deposition of soil or rock to form a barrier.

SEE OR SEARCH THIS CLASS, SUBCLASS:

53+, for subject matter relating to fluid storage in earth cavities.

263+, for chemical treatment of earth formations.

270, for impermeabilization of earth formations by other than chemical treatment.