DIFF Subgroup
E21C 35/19 Means for fixing picks or holders
Introduced: January 1995
Full Title
Full titles differ between systems:
IPC:
Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups , or > Mining picks; Holders therefor > Means for fixing picks or holders
CPC:
Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00 > Mining picks; Holders therefor (planing knives E21C27/44) > Means for fixing picks or holders
Of 3 combined children, 2 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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- E21C 35/197 using sleeves, rings or the like, as main fixing elements since 1995 IPC+CPC Available in IPC and CPC