| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Jacob Spahn | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
 | 153,391 | Jul. 21, 1874 | A.V. Sprague | Improvement in can-openers | |
 | 199,057 | Jan. 08, 1878 | J. Greenwood | Improvement in machines for making staves | |
 | 199,058 | Jan. 08, 1878 | J. Greenwood | Improvement in barrel-hoop machines | |
 | 201,372 | Mar. 19, 1878 | J.B. West | Improvement in screw-drivers | |
 | 282,495 | Aug. 07, 1883 | E. Caswell | Hub Boring Machine | |
 | 301,095 | Jul. 01, 1884 | F.H. Clement | Band sawing machine | |