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US Patent: 438,407
Apparatus for Forming or Shaping Sheet Metal Electrically
Patentee:
Mark W. Dewey (exact or similar names) - Syracuse, Onondaga County, NY

USPTO Classifications:
219/149, 413/8

Tool Categories:
metalworking machines : sheet metal : sheet metal bending machines

Assignees:
Dewey Corp. - Syracuse, Onondaga County, NY

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jul. 28, 1890
Granted: Oct. 14, 1890

Patent Pictures:
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