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2121598
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Information
Patent Grant
2121598
References
Source
Patent Number
2,121,598
Date Filed
Not available
Date Issued
Tuesday, June 21, 1938
86 years ago
CPC
H01J13/56 - Tubes having two or more main anodes
US Classifications
313 - Electric lamp and discharge devices
174 - Electricity: conductors and insulators
220 - Receptacles
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