US Patent: D288,168
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| Multiple-Tip Tool
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Patentee:
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| Charles H. Graham (exact or similar names) - Salt Lake City, UT |
| USPTO Classifications: |
| D8/85 |
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Patent Dates:
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| Applied: |
Jan. 25, 1985 |
| Granted: |
Feb. 10, 1987 |
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Patent Pictures:
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Design patent D288,168 -- edited selected drawing |
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Stan Schulz
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Description: |
| External design details for the TEKNA-TOOL interchangeable tip screwdriver based on patent no. 4,572,038.
The "specifications" include an extensive list of relevant prior patents: 438,150, 523,823, 1,000,900, 1,345,708, 1,816,812, 2,566,543, 2,629,661, 2,635,661, 2,714,409, 2,730,145, 2,749,953, 2,765,013, 3,006,395, 3,315,595, 3,683,984, 4,010,663, 4,227,430, 4,241,773, 4,273,173, 4,328,721, 4,372,362, 4,434,829, 4,449,559, 4,480,668 and 4,572,038. |
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