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Patent X-2054: 1814-01-28, Chimney fire places, air-flues, and ventilators, on the principle of dense air seeking, like water, its level

X Number Date Inventor City Title Status
X-2054 1814-01-28 John C. Brush Washington, DC Chimney fire places, air-flues, and ventilators, on the principle of dense air seeking, like water, its level Missing

Comments

Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2,000 of the almost 10,000 documents were recovered. Little is known about this patent. There are no patent drawings available. This patent is in the database for reference only.

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x-patents/x-2054.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1

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