| Patent CA12 |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| XC-12 | Jun. 25, 1830 | R. Hoyle | Improved hydraulic steam engine | steam engines |
| NS-12 | Feb. 08, 1851 | A. Gesner | Manufacturing illuminating gas from animal and vegetable oils, mineral oil, naphtha, petroleum rosin, pitch, tar, turpentine, coal tar, etc. | gas generators |
| NF-12 | Sep. 17, 1856 | W.J. Williams | The shaping of staves, by passing them through curved rollers, also for jointing, crozing and chamfering staves | cooper |
| CS-12 | Aug. 17, 1861 | F.J. Gardner | Cartridges | cartridges |
| CA-12 | Aug. 24, 1869 | E.E. Abbott | An improvement on lathes' chucks | metal lathe chucks |
