| Patents for I. W. Forbes |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | XC-837 | May 14, 1858 | I.W. Forbes | Combined rocking stave and heading machine |
 | CA-734 | Dec. 10, 1870 | I.W. Forbes | Improvements on steam engines |
 | CA-736 | Dec. 10, 1870 | I.W. Forbes | Improvements on those parts of steam engines called and known as the steam chest valve and valve seat |
 | CA-737 | Dec. 10, 1870 | I.W. Forbes | Improvements on those parts of steam engines called and known as the steam chest valve and valve seat |
| | CA-738 | Dec. 10, 1870 | I.W. Forbes | Improvements on those parts of steam engines called and known as the steam chest valve and valve seat |
 | CA-739 | Dec. 10, 1870 | I.W. Forbes | Improvements on those parts of steam engines called and known as the steam chest valve and valve seat |
| | CA-740 | Dec. 10, 1870 | I.W. Forbes | Improvement in that portion now in ordinary use of steam engine, called or known as "the valve gearing" |
