DIFF Subgroup
F04D 29/22 specially for centrifugal pumps
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Details, component parts, or accessories > Rotors > specially for centrifugal pumps
CPC:
Details, component parts, or accessories (machine elements in general F16) > Rotors (specially for elastic fluids F04D29/26) > specially for centrifugal pumps
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
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