solely by slitting (rods, drums, for same E21C25/10; saws, discs, wheels E21C25/18; chains, chain guides, for same E21C25/28)

Introduced: September 1968

Title

Titles differ between systems:

IPC: solely by slitting

CPC: solely by slitting (rods, drums, for same E21C25/10; saws, discs, wheels E21C25/18; chains, chain guides, for same E21C25/28)

Full Title

Full titles differ between systems:

IPC:

Machines which completely free the mineral from the seam > solely by slitting

CPC:

Machines which completely free the mineral from the seam > solely by slitting (rods, drums, for same E21C25/10; saws, discs, wheels E21C25/18; chains, chain guides, for same E21C25/28)

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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E21C 27/04 by a single chain guided on a frame with or without auxiliary slitting means IPC+CPC Available in IPC and CPC
E21C 27/08 with additional means for cutting the mineral into blocks IPC+CPC Available in IPC and CPC