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CPC
H01J2893/0049
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Parent Industries
H
ELECTRICITY
H01
Electric elements
H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2893/00
Discharge tubes and lamps
Current Industry
H01J2893/0049
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Patents Grants
last 30 patents
Information
Patent Grant
2494895
Patent number
2,494,895
Issue date
Jan 17, 1950
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
2461237
Patent number
2,461,237
Issue date
Feb 8, 1949
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
2212881
Patent number
2,212,881
Issue date
Aug 27, 1940
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
1605001
Patent number
1,605,001
Issue date
Nov 2, 1926
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents