US Patent: 737,231
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Tap-Borer Ratcheting Tap Borer
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Patentee:
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Edward G. Hayne (exact or similar names) - Ottawa, IL |
Manufacturer: |
Not known to have been produced |
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Patent Dates:
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Applied: |
Oct. 30, 1902 |
Granted: |
Aug. 25, 1903 |
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Jeff Joslin (dm)
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Description: |
Intended for cutting holes in pipe, this ratcheting tap borer is designed to work in one direction only. |
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