US Patent: 614,190 - Magnetic chuck


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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:

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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