On December 3, 1963, a patent was granted for a personal thermal suit.
Patent Information
Publication number: US3112792 A
Patent Title: Personal thermal device
Publication type: Grant
Publication date: 3 Dec 1963
Filing date: 13 Sep 1952
Priority date: 13 Sep 1952
Inventors: Jr Robert E Coleman, Calvin D Maccracken
Original Assignee: Jet Heet Inc
