DIFF Subgroup
F04D 29/44 Fluid-guiding means, e.g. diffusers
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Details, component parts, or accessories > Casings; Connections for working fluid > for radial or helico-centrifugal pumps > Fluid-guiding means, e.g. diffusers
CPC:
Details, component parts, or accessories (machine elements in general F16) > Casings; Connections of working fluid > for radial or helico-centrifugal pumps > Fluid-guiding means, e.g. diffusers
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
Child Classifications
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