37 / | HD | EXCAVATING |
|
196 | DF | SNOW OR ICE REMOVING OR GROOMING BY PORTABLE DEVICE {16} |
244 | | .~ Motorized rotary excavating tool {8} |
245 | DF | .~.~> Tool arresting means responsive to sensed condition |
246 | DF | .~.~> Electric motor drive |
247 | DF | .~.~> Rotor shaft adjustable relative to direction of travel |
248 | DF | .~.~> Diverse multistage rotary tools or tool portions (e.g., feeding and throwing, etc.) {1} |
253 | DF | .~.~> Fed by scraper blade {2} |
257 | DF | .~.~> Screw-type auger {1} |
259 | DF | .~.~> Centrifugal impeller |
260 | DF | .~.~> Having specific flow guide {2} |