DIFF Subgroup
G04B 31/004 characterised by the material used
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor > characterised by the material used
CPC:
Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor (bearings in general F16C ) > characterised by the material used
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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- G04B 31/008 Jewel bearings (G04B31/04 takes precedence) since 1980 +3 CPC IPC+CPC Available in IPC and CPC