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| Patents for John P. Brophy | |||||
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| Picture | Number | Date | Patentee | Title | |
| 616,887 | Jan. 03, 1899 | J.P. Brophy | Lathe Attachment for Cutting Irregular Forms | ||
| 649,902 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | ||
| 649,903 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | ||
| 649,904 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | ||
| 649,905 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | ||
| 649,906 | May 22, 1900 | J.P. Brophy | Automatic Lathe Attachment | ||