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2678434
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Information
Patent Grant
2678434
References
Source
Patent Number
2,678,434
Date Filed
Not available
Date Issued
Tuesday, May 11, 1954
70 years ago
CPC
F22B37/426 - Feed-water supply alarm devices using electric signals
US Classifications
340 - Communications: electrical
073 - Measuring and testing
307 - Electrical transmission or interconnection systems
338 - Electrical resistors
361 - Electricity: electrical systems and devices
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