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Patent for a spirometer. Illustartion included.

Date: August 16, 1904

Creator: Lyttleton, Henry Thomas

Partner: UNT Libraries Government Documents Department

Patent for a fire box for boilers. Illustration included.

Date: December 20, 1904

Creator: Scheliga, Raimund

Partner: UNT Libraries Government Documents Department

Patent for a freight car door. Illustration included.

Date: August 30, 1904

Creator: Herndon, Joseph R. & Marshall, Edward S.

Partner: UNT Libraries Government Documents Department

Patent for a nut wrench. Illustration included.

Date: December 13, 1904

Creator: Briscoe, Joseph M.

Partner: UNT Libraries Government Documents Department

Patent for a beamless brake for rail cars. Illustration included.

Date: September 27, 1904

Creator: Saling, Thomas W. & McKiel, James B.

Partner: UNT Libraries Government Documents Department

Patent for a car brake for train cars. Illustrations included.

Date: July 12, 1904

Creator: McKiel, James B.

Partner: UNT Libraries Government Documents Department

Patent for a rail-car door. This invention is in relation to 'flush doors'. Illustration includes.

Date: March 22, 1904

Creator: Saling, Thomas W. & McKiel, James

Partner: UNT Libraries Government Documents Department