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Adjustable Attachment for Freight-Car Doors.

Description: Patent for a mechanism that creates "an adjustable attachment for freight-car doors, for preventing sparks and other objectionable matter from getting into the cars, and means for operating the attachment that is adapted for use in securing the door in different positions of adjustment, and for connection with the body of the car by means of a seal-support, in order that the fixed adjustment of the door cannot be changed without breaking the seal" (lines 12-21).
Date: December 28, 1886
Creator: Duzan, Thomas H.
Partner: UNT Libraries Government Documents Department

Air-Compressor.

Description: Patent for "new and useful improvements for air-compressors" (lines 5-6), with instructions and illustrations.
Date: July 20, 1886
Creator: Harrold, Mahlon
Partner: UNT Libraries Government Documents Department

Air Ship.

Description: Patent for air ship design lifted by balloon with vertical adjustable sails. Accompanied with illustrations.
Date: November 23, 1886
Creator: Appling, Marby P.
Partner: UNT Libraries Government Documents Department
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