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US Patent: 617X
Method of Making Molds for Casting Iron Screws
Patentee:
Ebenezer Avery Lester - Herkimer, NY

USPTO Classifications:

Tool Categories:
trade specific : patternmaker

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: May 10, 1805

Patent Pictures:
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Description:
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. Only the patent drawing is available. This patent is in the database for reference only.

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