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US Patent: 66,163
Wheelwright's Machine
Improved Tram and Self-Centering Dish-Staff
Patentees:
J. R. McIrvin (exact or similar names) - Clinton, IL
Samuel Mills (exact or similar names) - Clinton, IL

USPTO Classifications:
157/4

Tool Categories:
trade specific : wheelwright

Assignees:
James J. Robinson - Clinton, IL

Manufacturer:
Not known to have been produced

Witnesses:
G. W. Knadler
A. H.C. Barber
Jas. A. Service
Patent Dates:
Granted: Jun. 25, 1867

Patent Pictures:
Mills & McIrvin Pat. June 25, 1867
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Description:
The device is an adjustable gage and marker to set the dish of wheel spokes and mark spokes to form a perfectly circular wheel.

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