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US Patent: 614,190
Magnetic chuck
Patentee:
Oakley S. Walker (exact or similar names) - Worcester, MA

USPTO Classifications:
192/84.6, 335/288, 335/290, 451/246, 451/398

Tool Categories:
metalworking machines : grinders : magnetic chucks
metalworking machines : metal lathes : metal lathe chucks
work holding : magnetic chucks

Assignees:
None

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

Witnesses:
D. C. Lakin
Herbert Duckworth

Patent Dates:
Applied: Mar. 11, 1897
Granted: Nov. 15, 1898

Patent Pictures: [ 1 | 2 ]
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Vintage Machinery entry for O. S. Walker & Co.

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