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2911497
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Information
Patent Grant
2911497
References
Source
Patent Number
2,911,497
Date Filed
Not available
Date Issued
Tuesday, November 3, 1959
64 years ago
CPC
H01H50/28 - Parts movable due to bending of a blade spring or reed
H02P9/24 - due to variation of make-to-break ratio of intermittently-operating contacts
H04M19/02 - providing ringing current or supervisory tones
Y10T29/49105 - Switch making
US Classifications
335 - Electricity: magnetically operated switches, magnets, and electromagnets
029 - Metal working
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