Henry F Illies filed a patent for a portable derrick crane that could fit over a jeep on September 26, 1947.

“This invention relates to a derrick crane adapted to be mounted on a small motor vehicle and while adapted generally for supporting, raising and lowering or conveying heavy objects is especially adapted to provide a support for an’– auger such as is employed for digging post holes and by means of which the auger may be adjusta- -bly supported with respect to the vehicle, lowered gradually as it advances into the ground,”