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US Patent: 28,747
Die plate for cutting screws
Patentee:
Elliott P. Gleason (exact or similar names) - Providence, RI

USPTO Classifications:
408/174

Tool Categories:
metalworking tools : taps and dies

Assignees:
None

Manufacturer:
Unknown

Witnesses:
James H. Parsons
Isaac A. Brownell
Patent Dates:
Granted: Jun. 19, 1860

Patent Pictures: [ 1 | 2 | 3 ]
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Description:
One of these appeared in a Martin J. Donnelly auction

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