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US Patent: 1,412,688
Tool Holder
Patentees:
James L. Layton (exact or similar names) - Tacoma, Pierce County, WA
Evan T. Hopkins (exact or similar names) - Tacoma, Pierce County, WA

USPTO Classifications:
192/45.006, 81/59.1

Tool Categories:
industrial tools : tool holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 21, 1920
Granted: Apr. 11, 1922

Patent Pictures:
USPTO (New site tip)
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