US Patent: 2,046,343
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| Screw
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Patentee:
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| Henry F. Phillips (exact or similar names) - Portland, OR |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 03, 1934 |
| Granted: |
Jul. 07, 1936 |
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Jeff Joslin
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Description: |
| This is the second of five patents for the Phillips screw and two for the Phillips screwdriver, all of them except the first granted (or co-granted) to Henry F. Phillips. The first patent was to John P. Thompson, patent 1,908,080. Phillips reportedly licensed that patent after Thompson had been unable to find anyone who could manufacture the screws. |
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