US PATENT SUBCLASS 249 / 186
.~.~ Including frictionally secured means

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

175  DF  CORE (INTERNAL MOLD) {5}
184  DF  .~ Of plural sections {2}
186.~.~ Including frictionally secured means

DEFINITION

Classification: 249/186

(under subclass 184) Apparatus wherein the plural core sections are held in their operative assembly by friction means and are collapsible upon removal of the friction means.