US PATENT SUBCLASS 40 / 575
.~.~ Interchangeable plate

Current as of: June, 1999
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40 /   HD   CARD, PICTURE, OR SIGN EXHIBITING

541  DF  ILLUMINATED SIGN {13}
564  DF  .~ Lamp box {13}
575.~.~ Interchangeable plate {1}
576  DF  .~.~.~> Interchangeable letters or numbers

DEFINITION

Classification: 40/575

Interchangeable plate:

(under subclass 564) Sign wherein the indicia is in the form of one or more removable plates and may be changed by removal and replacement with a plate or plates of similar external configuration.

SEE OR SEARCH THIS CLASS, SUBCLASS:

489+, for changing exhibitors with interchangeable indicia plates.

611, for nonilluminated signs having changeable or removable indicia plates.