Title: Miller Reese Hutchison
Content: refined the hearing aid into a more portable form powered by batteries, which he then called the Acousticon. The American press called the device a "miracle", and Hutchison helped by staging publicity events, such as having Metropolitan Opera lead singer Suzanne Adams photographed singing to formerly deaf people. He exhibited at the Louisiana Purchase Exposition, the world's fair in St. Louis, Missouri, in 1904. Medical experts discovered the device had several drawbacks. Frequency and dynamic range were limited, and those who had total hearing loss were not helped. Batteries were still bulky and need to be changed often. However it

Title: Miller Reese Hutchison
Content: was still regarded as "the best electrical aid for the semi-deaf yet devised." He also developed related devices known as the Akou-Massage (renamed the Massacon), and Akoulalion, which converted audio into vibrations, to help those with more profound hearing loss. They were widely adopted by schools for the deaf in the US and Europe. In 1905 Hutchison turned over the rights for the Acousticon to Kelley Monroe Turner (1859–1927). Turner would improve hearing aids (such as adding a volume control) and apply the technology to other products. One was the dictograph, which was an early hands-free inter-office intercom system. Turner's

Title: Augmentative and alternative communication
Content: of Hand Talk used by Native Americans to facilitate communication between different linguistic groups. The first known widely available communication aid was a letter and word-based communication board developed for, and with, F. Hall Roe, who had cerebral palsy. This communication board was distributed in the 1920s by a men's group in Minneapolis. The modern era of AAC began in the 1950s in Europe and North America, spurred by several societal changes; these included an increased awareness of individuals with communication and other disabilities, and a growing commitment, often backed by government legislation and funding, to develop their education, independence

Title: Hodgson-Aid Mill
Content: known locally as the Hodgson-Aid Mill, or Aid-Hodgson Mill. The mill was leased and operated intermittently from 1934-1949. In 1949 Fred Leach, an experienced miller, assumed the lease and both operated the mill and began marketing products through wholesalers, mostly whole grain flour and corn meal. He also provided picnic tables, campsites, and operated a gift shop for visitors to the mill. Leach increased production of meal and flour to as much as 2,000 pounds a day. From 1963 to 1969, the Harold Stott family took over operation of the mill. They expanded the line of products to include "white

Title: William Osler Abbott
Content: feedings and for administrating potassium, antibiotics or vitamins. Although many uses beyond that for which it was first employed have been developed, it remains a much neglected surgical adjunct. For a time after it was described in 1937, the device was widely used for the emptying of the gastrointestinal tract at times of surgical stress. Now it is described in only one textbook on surgery. William Osler Abbott did not create the Miller Abbott tube all alone, he had significant help from his coworker and good friend Thomas Grier Miller, who was an American internist. Miller was born on September

Question: What type of aid was developed my Miller Hutchinson in the early years of the 20th century?
Answer: Hearing Aid