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John Kenneth Hilliard (October 1901 - March 21, 1989) was an American acoustical and electrical engineer who pioneered several important loudspeaker concepts and designs. He helped develop the practical use of recorded sound for film and won an Academy Award in 1935. Hilliard designed movie theater sound systems and worked on radar and submarine detection equipment during World War II. He collaborated with James B. "Jim" Lansing

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