US PATENT SUBCLASS 249 / 22
.~.~.~.~.~ Mold forms spaced walls, or hollow 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}
13  DF  .~ Forming building structure {5}
18  DF  .~.~ Barrier or sustainer, e.g., wall, joist, etc. {5}
19  DF  .~.~.~ Including means to connect mold to existing building structure {2}
20  DF  .~.~.~.~ Progressive molding type {2}
22.~.~.~.~.~ Mold forms spaced walls, or hollow wall

DEFINITION

Classification: 249/22

(under subclass 20) Apparatus having means progressively forming (1) a hollow wall having spaced vertical recesses, or (2) spaced individual parallel walls.

SEE OR SEARCH THIS CLASS, SUBCLASS:

36+, for molding apparatus to form either a hollow wall, or spaced parallel walls.