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3419917
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Information
Patent Grant
3419917
References
Source
Patent Number
3,419,917
Date Filed
Not available
Date Issued
Tuesday, January 7, 1969
56 years ago
CPC
E04H4/0031 - with shell type elements
US Classifications
052 - Static structures
004 - Baths, closets, sinks, and spittoons
D25 - Building units and construction elements
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