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3290849
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Information
Patent Grant
3290849
References
Source
Patent Number
3,290,849
Date Filed
Not available
Date Issued
Tuesday, December 13, 1966
57 years ago
CPC
E04B2/14 - Walls having cavities in, but not between, the elements
E04B2002/0269 - Building elements with a natural stone facing
E04B2002/0284 - forming a unity with the building elements
US Classifications
052 - Static structures
D25 - Building units and construction elements
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