Inventor: Barrie John Machin
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Inventor: Gayle Kent McDaniel
Inventor: William Pomeroy Thomson
Inventor: William E. Duffett, Walter H. Jessel, Jr.
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Inventor: Siegfried Merholz
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Inventor: Barrie John Machin
Inventor: William Flemer, III
Inventor: Robert H. McColley
Inventor: Robert H. McColley
Inventor: Robert H. McColley
Inventor: Robert H. McColley
Inventor: Leonard E. Carrier
Inventor: Walter E. Raikes
Inventor: Arley H. Sylvester