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2947279
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Patent Grant
2947279
References
Source
Patent Number
2,947,279
Date Filed
Not available
Date Issued
Tuesday, August 2, 1960
64 years ago
CPC
E21D21/0093 - Accessories
Y10S116/34 - Tension indicating
Y10S116/35 - Electroluminescent dials
US Classifications
116 - Signals and indicators
405 - Hydraulic and earth engineering
411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
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