In 1962, Dr. James E. West and G. M. Sessler received a patent for the Electroacoustic Microphone, that is currently used in 90% of all audio devices such as cell phones, cordless phones, home stereos, performance microphones, studio microphones and more.

IN TRIBUTE TO OUR MIRACLE INVENTIONS TO THE WORLD 11 inches wide by 17 inches tall poster series Printed on HIGH QUALITY PHOTO PAPER