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2120462
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Information
Patent Grant
2120462
References
Source
Patent Number
2,120,462
Date Filed
Not available
Date Issued
Tuesday, June 14, 1938
86 years ago
CPC
F16B43/02 - with special provisions for engaging surfaces which are not perpendicular to a bolt axis or do not surround the bolt
E01B7/10 - Frogs
US Classifications
246 - Railway switches and signals
411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
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