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2150443
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Information
Patent Grant
2150443
References
Source
Patent Number
2,150,443
Date Filed
Not available
Date Issued
Tuesday, March 14, 1939
86 years ago
CPC
B65D5/3657 - the adjacent sides being interconnected by gusset folds
US Classifications
229 - Envelopes, wrappers, and paperboard boxes
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