DIFF Subgroup
G04B 13/02 Wheels; Pinions; Spindles; Pivots (bearings G04B31/00 )
Introduced: September 1968
Title
Titles differ between systems:
IPC: Wheels; Pinions; Spindles; Pivots
CPC: Wheels; Pinions; Spindles; Pivots (bearings G04B31/00 )
Full Title
Full titles differ between systems:
IPC:
Gearwork > Wheels; Pinions; Spindles; Pivots
CPC:
Gearwork > Wheels; Pinions; Spindles; Pivots (bearings G04B31/00 )
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Child Classifications
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