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| Patents for William C. Chapman | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 3,190,154 | Jun. 22, 1965 | W.C. Chapman | Adjustable End Wrench with Locking Means | |
 | 3,333,492 | Aug. 01, 1967 | W.C. Chapman | Adjustable End Wrench and Locking Means | |
 | 3,613,486 | Oct. 19, 1971 | W.C. Chapman | Pipe Wrench Adapter. | |