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| Patents for Joseph E. Wainwright | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,392,373 | Oct. 04, 1921 | J.E. Wainwright | Valve Lifting Device | valve spring tools | |
| 1,447,447 | Mar. 06, 1923 | J.E. Wainwright | Valve Lifting Device | valve spring tools | |