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Improvement in Combined Ventilators and Chimneys

Description: Patent for improvement in Combined Ventilators and Chimneys. This object is to be used with the brick chimney on top of the roof to provide air circulation. It consists of an iron-lined inner flue secured within an outer casing with suitable bottom and top perforation for establishing air current around the flue.
Date: July 14, 1874
Creator: Hickley, Walter R & Dibrell, Charles J

Improvement in Plaiting-Irons.

Description: Patent for an improvement to plaiting-irons: "a plaiting-iron composed of a peculiarly-constructed iron or metal plate used in connection with a correspondingly-constructed board" (lines 23-25), with illustrations.
Date: August 14, 1877
Creator: Gingras, Joseph E.
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