Patent US 4744595A

Patent number	US 4744595A (click link for details and documents via Google Patents)
Title	Hoisting apparatus for groupwise transfer of cargo units, such as paper rolls
Inventors	Erling Tonning, Jacob S. Halvorson
Company	Leif Hoegh & Co. A/S
Filing date	1985-10-31
Grant date	1988-05-17