CPC Subgroup
E21C 25/50 with equipment for cleaning the slit (associated with rotary-rod or rotary-drum machines E21C25/14)
Full Title
Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C27/02, E21C27/10, E21C27/18) > Machines slitting solely by one or more cutter chains moving unidirectionally along jibs > with equipment for cleaning the slit (associated with rotary-rod or rotary-drum machines E21C25/14)