DIFF Subgroup
H01P 1/04 Fixed joints
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Auxiliary devices > Fixed joints
CPC:
Auxiliary devices (coupling devices of the waveguide type H01P5/00) > Fixed joints
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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