CPC Subgroup
F04B 23/04 Combinations of two or more pumps
Full Title
Pumping installations or systems (pumps characterised by combination with, or adaptation to, specific driving engines or motors F04B17/00) > Combinations of two or more pumps
2 direct subcodes
Child Classifications
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- F04B 23/06 the pumps being all of reciprocating positive-displacement type
- F04B 23/08 the pumps being of different types