METALLIC COMPOSITION FOR PRODUCTION OF HYGROSCOPEC SMOKE
United States Patent Office 3,274,035 Sept. 20. 1966
Many compositions and methods are known to the art for producing smokes for concealment purposes as well as cloud seeding.
United States Patent Office 3,274,035 Sept. 20. 1966
Many compositions and methods are known to the art for producing smokes for concealment purposes as well as cloud seeding.