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| Patents for J. J. Robbins | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 98,014 | Dec. 21, 1869 | E.C. Barton | Improvement in boring-machine | |
 | 415,323 | Nov. 19, 1889 | C.M. Frank | Anti-friction way for shingle-sawing machines | |