| Patents for F. C. Hale |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 114,939 | May 16, 1871 | D. Harrigan | Improvement in Pipe-Cutters |
 | 126,161 | Apr. 30, 1872 | D.C. Stillson | Improvement in Pipe-Wrenches |
 | 129,952 | Jul. 30, 1872 | A. Haseltine, Jr. | Improvement in sawing-machines |
 | 148,057 | Mar. 03, 1874 | S. Henry | Improvement in Tool-Handles |
 | 152,228 | Jun. 23, 1874 | S. Henry | Awl-Handles |
 | 183,574 | Oct. 24, 1876 | T. Keenan | Improvement in Pipe-Wrenches |
 | 184,686 | Nov. 21, 1876 | J. Miller | Machines for Tapping Pipes Under Pressure |
 | 184,993 | Dec. 05, 1876 | D.C. Stillson | Wrench |
