US PATENT SUBCLASS 164 / 176
.~.~ Pipe mold type forming means

Current as of: June, 1999
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164 /   HD   METAL FOUNDING

159  DF  MEANS TO SHAPE A FORMING SURFACE {8}
169  DF  .~ Including means for compacting particulate fluent mold materials {12}
176.~.~ Pipe mold type forming means {1}
177  DF  .~.~.~> By moving pattern to effect shaping {1}

DEFINITION

Classification: 164/176

(under subclass 169) Apparatus for forming hollow cylindrical molds which are to be used as pipe molds.