US Patent: 3,197,841
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| Replaceably Mounted Insert
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Patentees:
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| Horace A. Frommelt (exact or similar names) - Philadelphia, PA |
| Robert E. Watling (exact or similar names) - Salem, Washington County, IN |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 05, 1960 |
| Granted: |
Aug. 03, 1965 |
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Joel Havens
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Description: |
| Original application filed 05 Oct., 1960. Divided and this application filed 09 Sept., 1963. |
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