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US Patent: 493,231
Chuck
Patentee:
Alfred Muir (exact or similar names) - Manchester, England

USPTO Classifications:
279/49

Tool Categories:
metalworking machines : drilling and boring : drill presses : drill press chucks
woodworking tools : hand drills : drill chucks
woodworking machines : wood drilling and boring : drill presses : drill press chucks

Assignees:
None

Manufacturer:
William Muir & Co. - Manchester, England

Witnesses:
W. N. Woodruff
Ella F. Braman

Patent Dates:
Applied: Jun. 08, 1892
Granted: Mar. 07, 1893

Patent Pictures:
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Google Patents
Report data errors or omissions to steward Jeff Joslin
Grace's Guide page on Alfred Muir
Vintage Machinery entry for William Muir & Co.
Description:
The inventor was the son of William Muir.

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