Class E21C : MINING OR QUARRYING
Subclass 25/22: Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam (dislodging machines with slitting means E21C 27/02, E21C 27/1, E21C 27/18) Machines slitting solely by one or more cutter chains moving unidirectionally along jibs
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 11498137 | Machine for simultaneous cutting of a plurality of slabs from a block of stone material | Nov 02, 18 | Nov 15, 22 | Sfera S.R.L.S. |
| 10526891 | Device and method for cutting quarry stone | Mar 29, 18 | Jan 07, 20 | DIAMOND STONE TECHNOLOGIES INC. |
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