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2295217
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Information
Patent Grant
2295217
References
Source
Patent Number
2,295,217
Date Filed
Not available
Date Issued
Tuesday, September 8, 1942
81 years ago
CPC
B61L5/189 - using flashing light sources
H05B39/09 - in which the lamp is fed by pulses
Y10T307/872 - Repetitive make and break
US Classifications
340 - Communications: electrical
246 - Railway switches and signals
307 - Electrical transmission or interconnection systems
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