| Patents for Welch & Crozier |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 23,356 | Mar. 29, 1859 | C. Carrier, A.H. Crozier | Chopping-block for stave-machine | cooper |
| 27,206 | Feb. 21, 1860 | A.H. Crozier | Machine for cutting and distancing the locks on hoops | hoop making machines |
| 40,783 | Dec. 01, 1863 | P. Welch | Improved stave-cutting machine | cooper |
| 40,784 | Dec. 01, 1863 | P. Welch | Improved machine for jointing staves | cooper |
| 42,244 | Apr. 05, 1864 | P. Welch | Improvement in machines for sawing headings for barrels | cooper |
| 141,246 | Jul. 29, 1873 | P. Welch | Improvement in hoop-cutting machines | hoop making machines |
