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1960503
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Information
Patent Grant
1960503
References
Source
Patent Number
1,960,503
Date Filed
Not available
Date Issued
Tuesday, May 29, 1934
90 years ago
CPC
H01J5/30 - using packing-material
H01J17/00 - Gas-filled discharge tubes with solid cathode
H01J2893/0046 - Lamp base with closure
H01J2893/0064 - Tubes with cold main electrodes (including cold cathodes)
US Classifications
315 - Electric lamp and discharge devices: systems
174 - Electricity: conductors and insulators
313 - Electric lamp and discharge devices
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