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Title:
Envelopes with integral, detachable coupons contained therein
United States Patent 3374940
US Patent References:
/0380616.html
- - 0380616
/1032648.html
- - 1032648
/1139003.html
- - 1139003
/1171703.html
- - 1171703
/2436105.html
- - 2436105
Inventors:
Allison, Robert D.
Publication Date:
03/26/1968
View Patent Images:
Download PDF 3374940
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Primary Class:
229/70
Other Classes:
493/261, 53/460
International Classes:
B42D15/08
US Patent References:
2931559
Remailable billing envelopes
3314592
Advertising combination
3259299
Container
Foreign References:
GB419327A