US PATENT SUBCLASS 264 / 262
.~.~.~.~ Concentric preforms

Current as of: June, 1999
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264 /   HD   PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES

239  DF  MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE {10}
241  DF  .~ To produce composite, plural part or multilayered article {9}
259  DF  .~.~ Shaping material and uniting to a preform {8}
261  DF  .~.~.~ Uniting spaced preforms, by introducing fluent material therebetween {1}
262.~.~.~.~ Concentric preforms

DEFINITION

Classification: 264/262

(under subclass 261) Processes in which the bodies have a

common center.

SEE OR SEARCH CLASS

156, Adhesive Bonding and Miscellaneous Chemical Manufacture,

294, for uniting a core within a tube where the elements are not maintained in a spaced relationship.