US PATENT SUBCLASS 206 / 544
.~.~.~ With retainer for vacuum-type receptacle

Current as of: June, 1999
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206 /   HD   SPECIAL RECEPTACLE OR PACKAGE

216  DF  COMBINED OR CONVERTIBLE {5}
223  DF  .~ Packaged assemblage or kit {20}
541  DF  .~.~ Camp or lunch type {9}
544.~.~.~ With retainer for vacuum-type receptacle

DEFINITION

Classification: 206/544

(under subclass 541) A container including structure to support or position a double walled container for heat insulation of content by evacuation of any gases between said double walls.

(1) Note. See (2) Note under subclass 543.