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PCE
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CPC Subgroup
E21C 27/04

by a single chain guided on a frame with or without auxiliary slitting means

Full Title

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) > by a single chain guided on a frame with or without auxiliary slitting means

1 direct subcode

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