US Patent: 555,879
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| Clamping or Securing Device
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Patentees:
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| Frederick W. Parsons (exact or similar names) - Cleveland, Cuyahoga County, OH |
| Ernest P. Parsons (exact or similar names) - Cleveland, Cuyahoga County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 09, 1895 |
| Granted: |
Mar. 03, 1896 |
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Joel Havens
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