US Patent: 4,448,097
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| Driver Tool
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Patentee:
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| David Rocca (exact or similar names) - Castro Valley, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 10, 1981 |
| Granted: |
May 15, 1984 |
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Stan Schulz
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Description: |
| Harris Zimmerman & Howard Cohen - patent attorneys
Abstract
A driver tool utilizing a sleeve which fits within and rotates with an elongated shaft. Driving bits are held to the sleeve and turned by the action of the rotating shaft. A handle which is expandable connects to the elongated shaft
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