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US Patent: 1,735,243
Slip Roll Forming Machine
Patentee:
Paul R. Hahnemann - Buffalo, Erie County, NY

USPTO Classifications:
72/169, 72/175

Tool Categories:
metalworking machines : sheet metal : sheet metal forming rolls

Assignees:
Niagara Machine & Tool Works - Buffalo, Erie County, NY

Manufacturer:
Not known to have been produced

Witnesses:
none listed

Patent Dates:
Applied: May 08, 1928
Granted: Nov. 12, 1929

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Niagara Machine & Tool Works

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