US Patent: 1,655,563
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| Thread-cutting die
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Patentee:
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| Albert J. Prance (exact or similar names) - Detroit, MI |
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Patent Dates:
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| Applied: |
Jul. 31, 1926 |
| Granted: |
Jan. 10, 1928 |
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Jeff Joslin
Vintage Machinery entry for Murchey Machine & Tool Co.
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Description: |
| Improvements to the inventor's own patent 1,563,108. The improvement allows the thread chasers to be removed and replaced without the use of tools. This invention was subsequently improved in patent 1,777,380. |
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