US PATENT SUBCLASS 220 / FOR 134
.~.~.~ Fluent material (220/422)

Current as of: June, 1999
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220 /   HD   RECEPTACLES

FOR 127  DF  MULTILAYER BARRIER STRUCTURE (220/415) {23}
FOR 132  DF  .~ Evacuated space between layers (220/420) {3}
FOR 133  DF  .~.~ With intermediate insulating means (220/421) {2}
FOR 134.~.~.~ Fluent material (220/422)

DEFINITION

Classification: 220/FOR.134

Fluent material:

Foreign art collections including a container wherein the heat transfer inhibiting material is comprised of particles, flakes, granules, or other material capable of free flow.