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US Patent: 155,501
Boring Hubs
Patentee:
John H. Chrispell - Oneida, Madison County, NY

USPTO Classifications:
408/95

Tool Categories:
trade specific : wheelwright

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Mar. 17, 1874
Granted: Sep. 29, 1874

Patent Pictures:
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