| Patents for Charles W. Hubbard |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 27,221 | Feb. 21, 1860 | C.W. Hubbard | Machine for grinding and polishing saws | saw sharpening machines |
| 79,979 | Jul. 14, 1868 | C.W. Hubbard | Improvement in Saw Handles | saw handles |
| 118,264 | Aug. 22, 1871 | G. Palmer, C.W. Hubbard | Improvement in the methods of manufacturing axes | tool making machines |
| 141,225 | Jul. 29, 1873 | C.W. Hubbard | Improvement in saw-buckles | reciprocating sawmills |
| 209,810 | Nov. 12, 1878 | C.W. Hubbard | Improvement in saws | sawblades |
| RE9,657 | Apr. 12, 1881 | C.W. Hubbard | Saw | sawblades |
| 245,831 | Aug. 16, 1881 | C.W. Hubbard | Saw-tooth | insertable saw teeth |
| D20,771 | May 26, 1891 | C.W. Hubbard | Design for an Ax | axes |
