WFeller buncher
WFirewood processor
WForwarder
WHarvester (forestry)
WHeli-logging
WLog splitter
WLogging truck
WMichigan logging wheels
WForestry mulching
WForest railway
WSkidder
WSteam donkey
WStump grinder
WSwing yarder
WTree spade
WWashington Winch
WWoodchipper
WYarder