Covers all hydraulic cranes, either large (over 75 tons), medium (22 - 75 tons), small (under 22 tons), (other than described in boom truck crane) fixed or swing cab, mounted on a truck, crawler, all terrain, or rough terrain carrier equipped with a telescopic variable length boom, and attachments, that is capable of hoisting, lowering, luffing, and swinging at various radii.
Telescopic Boom Crane Website