. . . . . . . . . . . . "Maxim Helicopter" . . . . . "1840-02-05" . . "Hiram Maxim" . . . . . . . . . . . . . . "1916" . . . . . . . . . . . . "Maxim Flying machine" . . "Captive Flying Machines" . . . . . . . "Sir Hiram Maxim's Captive Flying Machine" . . "flying machines" . . "1916-11-24" . . . "1840" . . . . "Hiram Stevens Maxim" . . . . . . . . . . "Maxim" . . . "Hiram Maxim" . . . . . . . "Sir Hiram Maxim" . . . . . . . . .