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2221586
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Information
Patent Grant
2221586
References
Source
Patent Number
2,221,586
Date Filed
Not available
Date Issued
Tuesday, November 12, 1940
83 years ago
CPC
H02P9/24 - due to variation of make-to-break ratio of intermittently-operating contacts
Y10T307/872 - Repetitive make and break
Y10T307/977 - Electrical actuator
US Classifications
322 - Electricity: single generator systems
307 - Electrical transmission or interconnection systems
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