CPC Subgroup
F04B 39/02 Lubrication (of machines or engines in general F01M)
Full Title
Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 > Lubrication (of machines or engines in general F01M)
4 direct subcodes
Child Classifications
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