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・ Harold Kingsley
・ Harold Kirton
・ Harold Kitching
・ Harold Kite
・ Harold Kitson
・ Harold Klemp
・ Harold Klunder
・ Harold Knerr
・ Harold Knight
・ Harold Knox-Shaw
・ Harold Knutson
・ Harold Koch Boysen
・ Harold Koontz
・ Harold Koplar
・ Harold Koplow
Harold Kosoff
・ Harold Kottman
・ Harold Kraft Memorial Field
・ Harold Krikke
・ Harold Kruger
・ Harold Kushner
・ Harold L. Barry
・ Harold L. Brode
・ Harold L. Brown
・ Harold L. Clark
・ Harold L. Dibble
・ Harold L. George
・ Harold L. Goodwin
・ Harold L. Holliday
・ Harold L. Humes


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Harold Kosoff : ウィキペディア英語版
Harold Kosoff

Harold Kosoff (November 5, 1930 – March 12, 1995) was an inventor. He is credited with inventing the free piston engine and the battery-powered baby swing. (U.S. Pat. No. 4,448,410 ) Exclusive rights for the battery-powered baby swing were sold to Graco. In addition, Kosoff invented a home air cleaner and chainless bicycle using an arc and pulley system.
==External links==

*(United States Patent 4448410 ), US Patent Office. Accessed 2007-01-04.
*(), Canadian Patent Office Issued May 25, 1965
*(), New York Times Article, April 11, 1964


抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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