Centrifugal force-controlled coupling switch mechanism for an el
Chuck spindle device and power tools incorporating same
Clutch mechanism for use in a power-driven tool
Compressed air tool
Compressed-air screw or bolt tightener, especially an impulse or
Compressed-air screwdriver with shutoff bypass means
Computer aided anti-buckling device for mine roof bolting machin
Concrete drop hammer attachment device
Construction of underground dams and equipment therefor
Control system for a rock drill
Control system for an internal combustion engine using either ga
Control system for percussion drill
Controls for hydraulic percussion drill