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US Patent: 240,513
Planer Chuck
Patentee:
John H. Greenwood (exact or similar names) - Columbus, OH

USPTO Classifications:
269/154, 409/289

Tool Categories:
metalworking machines : metal planers : metal planer chucks
work holding : vises : chucks

Assignees:
None

Manufacturer:
L. B. Flanders Machine Works - Philadelphia, PA
Pedrick & Ayer - Philadelphia, PA

Witnesses:
D. E. Williams
J. A. Hutchinson
Sidney P. Hollingsworth
Phil A. Stansbury
Patent Dates:
Applied: Apr. 19, 1880
Granted: Apr. 26, 1881

Patent Pictures: [ 1 | 2 ]
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"Vintage Machinery" entry for Pedrick & Ayer
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