US PATENT SUBCLASS 220 / FOR 180
.~ Plural self-sustaining layers (220/468)

Current as of: June, 1999
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220 /   HD   RECEPTACLES

FOR 127  DF  MULTILAYER BARRIER STRUCTURE (220/415) {23}
FOR 180.~ Plural self-sustaining layers (220/468)

DEFINITION

Classification: 220/FOR.180

Plural self-sustaining layers:

Foreign art collections including a container wherein at least two of the layers are disclosed as capable of independently retaining their configuration.