| Patents for Jacob Spahn |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 153,391 | Jul. 21, 1874 | A.V. Sprague | Improvement in can-openers | combination cork extractors |
| 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 |
| 201,372 | Mar. 19, 1878 | J.B. West | Improvement in screw-drivers | spiral screwdrivers |
| 282,495 | Aug. 07, 1883 | E. Caswell | Hub Boring Machine | wheelwright |
| 301,095 | Jul. 01, 1884 | F.H. Clement | Band sawing machine | bandsaws |
