US PATENT SUBCLASS 249 / 12
.~.~.~ Culvert and header wall

Current as of: June, 1999
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249 /   HD   STATIC MOLDS

1  DF  IN SITU CONSTRUCTION ENGINEERING TYPE OR BUILDING TYPE-MOLD OR FORM {4}
10  DF  .~ Forming hydraulic and earth control type product in situ {1}
11  DF  .~.~ Culvert, waterway, pipe, or tunnel {1}
12.~.~.~ Culvert and header wall

DEFINITION

Classification: 249/12

(under subclass 11) Apparatus for forming a culvert with angular divergent walls.

(1) Note. Included herein are molding devices for making a header (divergent walls) on a preformed culvert.

SEE OR SEARCH CLASS

405, Hydraulic and Earth Engineering,

125, for a culvert with header wall structure.