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2401092
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Information
Patent Grant
2401092
References
Source
Patent Number
2,401,092
Date Filed
Not available
Date Issued
Tuesday, May 28, 1946
78 years ago
CPC
F16L9/153 - comprising only layers of metal and concrete with or without reinforcement
F16L9/08 - of concrete, cement, or asbestos cement, with or without reinforcement
F16L13/029 - for concrete pipes
Y10T29/49863 - with prestressing of part
Y10T29/49874 - Prestressing rod, filament or strand
Y10T29/49888 - Subsequently coating
US Classifications
138 - Pipes and tubular conduits
029 - Metal working
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