Official Gazette of the United States Patent Office
United States. Patent Office
Arthur Ervin Smith, Los Angeles, Calif. Filed May 18, 1925. Serial No. 31,031. 7 Claims. ... 1,603,878. ELIMINATOR. Arthur R. Smith, Schenectady, N. Y., assignor to General Electric Company, a Corporation of New York. Filed May 19. 1924.