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1642001
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Information
Patent Grant
1642001
References
Source
Patent Number
1,642,001
Date Filed
Not available
Date Issued
Tuesday, September 13, 1927
97 years ago
CPC
H02P1/023 - Protection against sparking of contacts or sticking together
US Classifications
335 - Electricity: magnetically operated switches, magnets, and electromagnets
200 - Electricity: circuit makers and breakers
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