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| Patents for John R. Cox | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,587,124 | Jun. 28, 1971 | J.E. Mix, J.R. Cox | Tool Holder | lathe tools | |
| 3,618,962 | Nov. 09, 1971 | J.E. Mix, J.R. Cox | Collet Chuck | lathe tools | |