US Patent: 1,809,553
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Tool Holder
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Patentees:
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Herrmann M. Graul, deceased (Estate of) (exact or similar names) - Detroit, Wayne County, MI |
Edith P. Graul, Administratrix (exact or similar names) - Detroit, Wayne County, MI |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Mar. 25, 1926 |
Granted: |
Jun. 09, 1931 |
USPTO (New site tip) Google Patents
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Joel Havens
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