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3075359
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Patent Grant
3075359
References
Source
Patent Number
3,075,359
Date Filed
Not available
Date Issued
Tuesday, January 29, 1963
61 years ago
CPC
E21D11/07 - using brick- laying machines
E21D11/40 - Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
US Classifications
405 - Hydraulic and earth engineering
052 - Static structures
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