US Patent D820478 Light bulb filament
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Patent Inventor Names
Chenjun Wu0
Feng Wu0
Hongkui Jiang0
Yanzeng Gao0
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US Patent D0820478 Light bulb filament US Patent D820478 Light bulb filament
Infobox
Patent Number
D08204780
Patent Number
D8204780
Edits on 2 Apr, 2023
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Infobox
Is a
Patent Jurisdiction
Patent Number
D08204780
Date of Patent
June 12, 2018
0Patent Application Number
296065170
Date Filed
June 5, 2017
0Patent Primary Examiner
Edits on 20 Jan, 2022
Golden AI
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US Patent D0820478 Light bulb filament
Infobox
Is a
Patent jurisdiction
Patent number
D0820478
Date of patent
June 12, 2018
Patent application number
29606517
Date Filed
June 5, 2017
Patent primary examiner
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