Fire-safe hotels and motels in Swedesboro, New Jersey: 1  Holiday Inn Select Bridgeport, 1 Pureland Dr I-295 Exit 10, Swedesboro, NJ 08085, Phone: (856) 467-3322, Fax: (856) 467-3031.
Quick Answer. The first working gun silencer was developed by Hiram P. Maxim in 1908, who started selling the first units when the invention was patented, in 1909. Hiram P. Maxim is the son of U.S. born inventor Hiram Smith Maxim who invented the first portable machine gun. Continue Reading.
In early acoustic phonographs, the stylus vibrated a diaphragm which produced sound waves which were coupled to the open air through a flaring horn, or directly to the listener's ears through stethoscope-type earphones. The phonograph was invented in 1877 by Thomas Edison. While other inventors had produced devices that could record sounds, Edison's phonograph was the first to be able to reproduce the recorded sound. His phonograph originally recorded sound onto a  tinfoil sheet wrapped around a rotating cylinder.