Devices for lifting or lowering bulky or heavy goods for loading or

Official title: Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes (mobile or transportable lifts in, or associated with, buildings and specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure B66B9/16; cranes B66C)

B66F9/00 (Devices for lifting or lowering bulky or heavy goods for loading or) appears on 5,606 US grants and 5,641 published applications in this corpus.