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| Patents for Joseph P. Barnes | |||||
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| Number | Date | Patentee | Title | Type | |
| 761,573 | May 31, 1904 | J.P. Barnes | Drilling Machine Attachment | ||
| 782,214 | Feb. 14, 1905 | J.P. Barnes | Movable Endless Grate | ||
| 823,201 | Jun. 12, 1906 | J.P. Barnes | Gearing | drill presses | |
| 824,331 | Jun. 26, 1906 | J.P. Barnes | Chain Grate | ||
| 948,472 | Feb. 08, 1910 | J.P. Barnes | Drilling Machine | ||