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Classification
F23N
F23N2039/00
ClassID:
157349
⎘
F23N2039/00 - CPC Classification
Classification description:
Sub-classes:
F23N2039/02 »
Solid fuels
4
F23N2039/04 »
Gaseous fuels
28
F23N2039/06 »
Liquid fuels
5