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the arc being outside, in the open
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CPC
H05B31/0003
This industry / category may be too specific. Please go to a parent level for more data
Parent Industries
H
ELECTRICITY
H05
Electric techniques
H05B
ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
H05B31/00
Electric arc lamps
Current Industry
H05B31/0003
the arc being outside, in the open
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