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3805000
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Information
Patent Grant
3805000
References
Source
Patent Number
3,805,000
Date Filed
Not available
Date Issued
Tuesday, April 16, 1974
50 years ago
CPC
H01H1/0203 - specially adapted for vacuum switches
H01H33/6683 - by gettering
US Classifications
218 - High-voltage switches with arc preventing or extinguishing devices
148 - Metal treatment
200 - Electricity: circuit makers and breakers
420 - Alloys or metallic compositions
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