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| Patents for Thomas F. Cosgrove | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 136,405 | Mar. 04, 1873 | G.R. Babbitt, W.A. Harris | Improvement in piston-packings | |
 | 151,468 | Jun. 02, 1874 | G.B. Brayton | Gas Engines | |
 | 191,811 | Jun. 12, 1877 | W.T. Nicholson | Improvement in File Holders | |
 | 192,247 | Jun. 19, 1877 | C.H. Field | Improvement in engraving-machines | |
 | 198,668 | Dec. 25, 1877 | W.T. Nicholson | Improvement in Butchers' Steels | |
 | 198,777 | Jan. 01, 1878 | W.T. Nicholson | File Handle | |
 | 200,218 | Feb. 12, 1878 | W.T. Nicholson | File Cleaner | |