US Patent: 1,213,253
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| Tapping or thread-cutting device
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Patentee:
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| Arthur C. Pletz (exact or similar names) - Cincinnati, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 30, 1915 |
| Granted: |
Jan. 23, 1917 |
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Jeff Joslin
Vintage Machinery entry for Morris Machine Tool Co.
Vintage Machinery entry for Carl Pletz & Sons
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Description: |
| The inventor was one of the "Sons" of metalworking machinery maker Carl Pletz & Sons, and he was also the general manager of the Morris Machine Tool Co. |
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