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2637346
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Information
Patent Grant
2637346
References
Source
Patent Number
2,637,346
Date Filed
Not available
Date Issued
Tuesday, May 5, 1953
71 years ago
CPC
B28B21/70 - by building-up from preformed elements
F16L9/22 - Pipes composed of a plurality of segments
US Classifications
138 - Pipes and tubular conduits
264 - Plastic and nonmetallic article shaping or treating: processes
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