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| Patents for J. C. Schroeder | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 194,638 | Aug. 28, 1877 | W.C. Barker | Improvement in machines for boring pump-logs | |
 | 206,795 | Aug. 06, 1878 | A.H. Jarecki | Pipe-Tongs | |