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| Patents for William P. Johnson | |||||
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| Picture | Number | Date | Patentee | Title | |
| 923,848 | Jun. 08, 1909 | W.P. Johnson | Bit-brace | ||
 | 1,254,753 | Jan. 29, 1918 | C.H. Whipple | Machine for Manufacturing Twist Drills & Other Articles | |