Dee ihe ga-aga n'ihu maka paragraf a - William Hedgcock (July 4, 1883 <unk> September 29, 1947) bụ onye injinia ụda nke America. A họpụtara ya maka Oscar maka Best Special Effects na fim "The Invisible Man Returns" na 13th Academy Awards
Ọ dị mma. Ọ rụrụ ọrụ n'ihe karịrị ihe nkiri iri itoolu n'oge ọrụ ya.