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US Patent: 410,299
Machine for cutting out concavo-convex shells or dishes
Patentee:
Charles Spofford (exact or similar names) - New York, NY

USPTO Classifications:
144/33, 269/182, 269/236, 269/54.1

Tool Categories:
woodworking machines : specialty woodworking machines

Assignees:
William J. Hiss - New York, NY
William P. Sandford - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
A. N. Jesbera
E. M. Watson

Patent Dates:
Applied: May 08, 1889
Granted: Sep. 03, 1889

Patent Pictures:
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