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US Patent: RE6,828
Improvement in machines for making wooden shanks for boots and shoes
Patentee:
Watson N. Sprague (exact or similar names) - South Framingham, MA

USPTO Classifications:
12/40.5, 144/146

Tool Categories:
trade specific : cobbler

Assignees:
W. W. Potter - Boston, MA
Watson N. Sprague - South Framingham, MA

Manufacturer:
Not known to have been produced

Witnesses:
J. R. Snow
R. H. Eddy

Patent Dates:
Applied: Nov. 16, 1875
Granted: Dec. 28, 1875

Reissue Information:
Reissue of 157,424 (Dec. 01, 1874)

Patent Pictures:
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