US Patent: 1,761,156
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| Turning Tool Applicable to Remove Refractory Screws
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Patentee:
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| Ferdinand R. Rosan (exact or similar names) - Bendigo,, Victoria Australia |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 08, 1929 |
| Granted: |
Jun. 03, 1930 |
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Joel Havens
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Description: |
| Claim:
An object of this invention is to provide a tool usable to loosen inserted screws which resist ordinary efforts to withdraw them. My tool is usable to rotate screws which are corroded or have damaged or broken heads. It can also be applied for inserting and tightening screws and for various other purposes involving rotation by the application of considerable force. |
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