Mining picks; Holders therefor (planing knives E21C27/44)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Mining picks; Holders therefor

CPC: Mining picks; Holders therefor (planing knives E21C27/44)

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

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)

Of 6 combined children, 3 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1995.

Child Classifications

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E21C 35/183 with inserts or layers of wear-resisting material since 1995 +4 CPC IPC+CPC Available in IPC and CPC
E21C 35/184 CPC only CPC only
E21C 35/186 CPC only CPC only
E21C 35/187 with arrangement of fluid-spraying nozzles (supply of fluid to the nozzles E21C35/22) since 1995 IPC+CPC Available in IPC and CPC
E21C 35/188 CPC only CPC only
E21C 35/19 Means for fixing picks or holders since 1995 +1 CPC IPC+CPC Available in IPC and CPC