| Patents for Thomas F. Cosgrove |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 136,405 | Mar. 04, 1873 | G.R. Babbitt, W.A. Harris | Improvement in piston-packings | piston ring and packing |
| 151,468 | Jun. 02, 1874 | G.B. Brayton | Gas Engines | gas and gasoline engines |
| 191,811 | Jun. 12, 1877 | W.T. Nicholson | Improvement in File Holders | files |
| 192,247 | Jun. 19, 1877 | C.H. Field | Improvement in engraving-machines | metal engraving machines |
| 198,668 | Dec. 25, 1877 | W.T. Nicholson | Improvement in Butchers' Steels | |
| 198,777 | Jan. 01, 1878 | W.T. Nicholson | File Handle | tool handles |
| 200,218 | Feb. 12, 1878 | W.T. Nicholson | File Cleaner | files |
