US Patent: 1,412,688
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Tool Holder
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Patentees:
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James L. Layton (exact or similar names) - Tacoma, Pierce County, WA |
Evan T. Hopkins (exact or similar names) - Tacoma, Pierce County, WA |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Oct. 21, 1920 |
Granted: |
Apr. 11, 1922 |
USPTO (New site tip) Google Patents
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Joel Havens
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