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US Patent: 18,612
Clamp for Boring Hubs
Patentee:
John Thrasher (exact or similar names) - Avon, NY

USPTO Classifications:
269/156, 408/137

Tool Categories:
trade specific : wheelwright

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
I. Dennis, Jr.
F. S. Myer
Patent Dates:
Granted: Nov. 10, 1857

Patent Pictures:
USPTO (New site tip)
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