DIFF Subgroup
E05D 11/04 relating to the use of free balls as bearing-surfaces (E05D7/06 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: relating to the use of free balls as bearing-surfaces
CPC: relating to the use of free balls as bearing-surfaces (E05D7/06 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Additional features or accessories of hinges > relating to the use of free balls as bearing-surfaces
CPC:
Additional features or accessories of hinges > relating to the use of free balls as bearing-surfaces (E05D7/06 takes precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Note: 1 CPC extensions are marked as secondary classification only.
Child Classifications
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