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Outlet valves
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CPC
H05B31/0024
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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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H05B31/0024
Outlet valves
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Patents Grants
last 30 patents
Information
Patent Grant
1735947
Patent number
1,735,947
Issue date
Nov 19, 1929
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents