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1621047
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Information
Patent Grant
1621047
References
Source
Patent Number
1,621,047
Date Filed
Not available
Date Issued
Tuesday, March 15, 1927
98 years ago
CPC
E06B3/52 - Wings requiring lifting before opening
Y10T16/54085 - Along hinge axis
US Classifications
016 - Miscellaneous hardware
049 - Movable or removable closures
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