DIFF Subgroup
F04D 29/18 Rotors (specially for elastic fluids F04D29/26)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Rotors
CPC: Rotors (specially for elastic fluids F04D29/26)
Full Title
Full titles differ between systems:
IPC:
Details, component parts, or accessories > Rotors
CPC:
Details, component parts, or accessories (machine elements in general F16) > Rotors (specially for elastic fluids F04D29/26)
CPC subdivides this area 3x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
Child Classifications
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