| Patent XC7 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| XC-7 | Oct. 31, 1826 | N. Cushing, R. Welton | Threshing and winnowing machine | threshers and thrashers |
| 7 | Aug. 10, 1836 | T. Blanchard | Machine for boring holes and cutting lanyard-scores in deadeyes | drilling and boring |
| NS-7 | Jan. 25, 1840 | R. Corbet | Method of preventing chimneys from smoking | chimneys |
| NF-7 | Jul. 01, 1854 | C.G. Fox | Improvement in manufacture of whale, seal and cod oils, with improved machinery for such manufacture | |
| CS-7 | Aug. 07, 1861 | J.M. Walden | Switch for Railroads | track and switches |
