| Patents for John Greenwood & Co. |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 11,858 | Oct. 31, 1854 | H.H. Evarts | Shingle machine | shingle machines |
| 24,458 | Jun. 21, 1859 | J. Greenwood | Machine for chamfering barrel-heads | cooper |
| 46,661 | Mar. 07, 1865 | J. Greenwood | Improvement in machines for making heads to barrels | cooper |
| 70,393 | Nov. 05, 1867 | G.L. Benton | Improved emery-wheels for grinding and polishing saws, &c. | saw sharpening machines |
| 79,651 | Jul. 07, 1868 | J. Greenwood | Improvement in machines for cutting staves | cooper |
| 127,478 | Jun. 04, 1872 | J. Greenwood | Improvement in machines for crozing and chamfering barrels | cooper |
| 145,942 | Dec. 30, 1873 | J. Greenwood | Improvement in machines for forcing hoops on barrels | cooper |
| 167,166 | Aug. 31, 1875 | J. Greenwood | Improvement in machines for chamfering and crozing barrels | cooper |
| RE7,093 | May 02, 1876 | J. Greenwood | Improvement in machines for crozing and chamfering barrels | cooper |
| 199,056 | Jan. 08, 1878 | J. Greenwood | Hoop-making machine | hoop making machines |
| 199,057 | Jan. 08, 1878 | J. Greenwood | Improvement in machines for making staves | cooper |
| 199,058 | Jan. 08, 1878 | J. Greenwood | Improvement in barrel-hoop machines | hoop making machines |
