US Patent: 3,040,632
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| Double Action Cutting Tool
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Patentees:
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| John M. Walter (exact or similar names) - Cincinnati, Hamilton County, OH |
| Graham E. Marx (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 10, 1955 |
| Granted: |
Jun. 26, 1962 |
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Joel Havens
"Vintage Machinery" entry for G. A. Gray Co.
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Description: |
| Original application filed 10 May, 1955, now patent #2,940,368. Divided and this application filed 16 Jul., 1960. |
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