US PATENT SUBCLASS 144 / 136.5
.~.~ Grooving core box

Current as of: June, 1999
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144 /   HD   WOODWORKING

134.1  DF  SHAPING MACHINE {16}
136.1  DF  .~ Grooving machine {9}
136.5.~.~ Grooving core box

DEFINITION

Classification: 144/136.5

Grooving core box:

(under subclass 136.1) Machine particularly adapted to score a container intended to receive the green sand to be used in a casting operation.