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in creator/contributor: "Ray, Albert J."  
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Primary view of Valve for explosive-engines.
Ray, Albert J.
February 2, 1914
Primary view of Valve for Explosive-Engines.
Ray, Albert J.
September 2, 1913
Primary view of Burner for Crude Oil.
Lewis, Thomas E.; Ray, Albert J. & Wesson, Miley B.
June 10, 1902
Primary view of Crude Oil Burner
Lewis, Thomas E.; Ray, Albert J. & Wesson, Miley B.
January 24, 1905
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