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1747648
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Information
Patent Grant
1747648
References
Source
Patent Number
1,747,648
Date Filed
Not available
Date Issued
Tuesday, February 18, 1930
94 years ago
CPC
H01H61/017 - Heating by glow discharge or arc in confined space
US Classifications
315 - Electric lamp and discharge devices: systems
313 - Electric lamp and discharge devices
337 - Electricity: electrothermally or thermally actuated switches
417 - Pumps
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