https://skippersreview.com/review/new/hydrohoist-marine-group-claremore
The HydroHoist was a quick, economical system that displaced the water by air and formed a free-floating lift. Once word of the invention became known, demand from boat owners increased, first in northeastern Oklahoma, and then throughout the Midwest. By 1971 the company moved to a plant in Claremore, OK, where the corporate office still remains today.