CPC Subgroup
E21F 17/04 Distributing means for power supply in mines
Full Title
Methods or devices for use in mines or tunnels, not covered elsewhere (mine lighting F21, H05B) > Distributing means for power supply in mines
3 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- E21F 17/06 Distributing electric power; Cable networks; Conduits for cables (circuit arrangements for supplying or distributing electric power in general H02J)
- E21F 17/08 Distributing hydraulic power; Pipe networks for hydraulic liquid (pipe-line systems in general F17D)
- E21F 17/10 Distributing pneumatic power; Pipe networks for compressed air (pipe-line systems in general F17D)