US Patent: 1,307,831
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| Drilling and tapping machine
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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: |
May 02, 1917 |
| Granted: |
Jun. 24, 1919 |
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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 the general manager of the Morris Machine Tool Co., and it is possible that this invention was used by them although that remains unconfirmed. During the period 1920 to 1923 he was one of the Sons in Carl Pletz & Sons which manufactured a 9-inch shaper. |
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