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1816440
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Information
Patent Grant
1816440
References
Source
Patent Number
1,816,440
Date Filed
Not available
Date Issued
Tuesday, July 28, 1931
93 years ago
CPC
B65D17/20 - Tearing-strips or -wires
B21D51/386 - on the side-wall of containers
US Classifications
220 - Receptacles
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