DIFF Subgroup
E01D 19/04 Bearings ; Hinges
Introduced: September 1968
Title
Titles differ between systems:
IPC: Bearings; Hinges
CPC: Bearings ; Hinges
Full Title
Full titles differ between systems:
IPC:
Details of bridges > Bearings; Hinges
CPC:
Structural or constructional details of bridges > Bearings ; Hinges
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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