US PATENT SUBCLASS 40 / 789
.~.~.~.~ Having display window formed in blank
Current as of:
June, 1999
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40 /
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CARD, PICTURE, OR SIGN EXHIBITING
700
DF
PICTURE FRAME
{29}
780
DF
.~ Knockdown or set-up type {3}
786
DF
.~.~ Folded {2}
788
DF
.~.~.~ Frame formed from single unitary blank {1}
789
.~.~.~.~ Having display window formed in blank
DEFINITION
Classification: 40/789
Having display window formed in blank:
(under subclass 788) Folded picture frame wherein the unbent sheet has an opening therein which will allow a displayed planar article to be viewed after the blank has been folded to form a frame.