DIFF Main Group
E04G 25/00 Shores or struts (specially designed for use in mines E21D15/00 ); Chocks
Introduced: September 1968
Title
Titles differ between systems:
IPC: Shores or struts; Chocks
CPC: Shores or struts (specially designed for use in mines E21D15/00 ); Chocks
Full Title
Full titles differ between systems:
IPC:
Shores or struts; Chocks
CPC:
Shores or struts (specially designed for use in mines E21D15/00 ); Chocks
Of 4 combined children, 2 exist in both systems.
2 codes are CPC-only extensions.
Note: 2 CPC extensions are marked as secondary classification only.
Child Classifications
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