| Patents for C. F. Clausen |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
 | 81,898 | Sep. 08, 1868 | S.M. Hamilton | Improvement in planing-machines |
 | 89,240 | Apr. 20, 1869 | T.T. Prosser | Improvement in steam-generators |
 | 91,965 | Jun. 29, 1869 | T.T. Prosser | Improved machine for forming threads on screws |
 | 105,372 | Jul. 12, 1870 | J.F. Ronan, Jr. | Wrench |
 | 110,865 | Jan. 10, 1871 | T.T. Prosser | Improvement in traction-engines |
 | 121,555 | Dec. 05, 1871 | J.S. Teed | Improvement in water-wheels |
 | 124,028 | Feb. 27, 1872 | S.G. Bigelow | Improvement in Weatherboard Gauges |
