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CPC
H05B31/04
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Parent Industries
H
ELECTRICITY
H05
Electric techniques
H05B
ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
H05B31/00
Electric arc lamps
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H05B31/04
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Patents Grants
last 30 patents
Information
Patent Grant
2594242
Patent number
2,594,242
Issue date
Apr 22, 1952
F21 - LIGHTING
Information
Patent Grant
2305757
Patent number
2,305,757
Issue date
Dec 22, 1942
F21 - LIGHTING
Information
Patent Grant
2186063
Patent number
2,186,063
Issue date
Jan 9, 1940
F21 - LIGHTING
Information
Patent Grant
2029251
Patent number
2,029,251
Issue date
Jan 28, 1936
F21 - LIGHTING
Information
Patent Grant
1641301
Patent number
1,641,301
Issue date
Sep 6, 1927
F21 - LIGHTING
Information
Patent Grant
1622392
Patent number
1,622,392
Issue date
Mar 29, 1927
B60 - VEHICLES IN GENERAL
Information
Patent Grant
1392497
Patent number
1,392,497
Issue date
Oct 4, 1921
F21 - LIGHTING
Patents Applications
last 30 patents