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US Patent: 6,558X
Automatic fan
Improvement on patent of Nov. 27, 1830 mechanical fam
Patentee:
James Barron - Norfolk, VA

USPTO Classifications:
416/80

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: Jun. 13, 1831

Patent Pictures:
USPTO pdf tiff
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Description:

This patent is an improvement of patent #6,263X.

Most of the patents prior to 1836 were lost in the Dec. 1836 fire. Only about 2000 of the almost 10000 documents were recovered.

Little is known about this patent. Only the patent drawing is available. This patent is in the database for reference only.

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