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Patent X-4959: 1828-01-05, Hydrostatic and hydraulic elevator

X Number Date Inventor City Title Status
X-4959 1828-01-05 James McCreary Noblestown, Alleghany County, PA Hydrostatic and hydraulic elevator 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.

Information Sources

(To be filled in.)

x-patents/x-4959.txt · Last modified: 2019/05/25 21:49 by 127.0.0.1

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