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US Patent: 564,296
Magnetic chuck
Patentee:
Oakley S. Walker - Worcester, MA

USPTO Classifications:
147/5, 192/84.1, 269/8, 335/289, 409/903

Tool Categories:
metalworking machines : metal planers : metal planer chucks

Assignees:
None

Manufacturer:
O. S. Walker & Co. - Worcester, MA

Witnesses:
B. F. Curtis
J. W. Robertson

Patent Dates:
Applied: Feb. 13, 1896
Granted: Jul. 21, 1896

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for O. S. Walker & Co.
Description:
This patent is reportedly the genesis of the magnetic chuck.

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