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US Patent: 1,346,978
Tool Holder
Patentees:
Joshua J. Riley (exact or similar names) - Pontiac, Oakland County, MI
Elmer E. Blackstone (exact or similar names) - Pontiac, Oakland County, MI

USPTO Classifications:
279/19.5

Tool Categories:
industrial tools : tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 27, 1919
Granted: Jul. 20, 1920

Patent Pictures:
USPTO (New site tip)
Google Patents
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