1844    H. Stephens  II. 211  				A power-crane.
1912    B. F. Cresson  & C. W. Staniford  24  				Elevators and small power cranes lift freight to the various deck levels.
1993     		(Nexis)	 24 Nov. 1  				The power crane is working overtime at the construction site of a county government building in St. Charles.