| Patents for Wallis & Steevens |
Patents 1 -
4
of 4
      |
| Number | Date | Patentee | Title | Type |
| 466,026 | Dec. 29, 1891 | A.H. Wallis | Starting-valve for compound-engines | steam engine valve gear |
| GB-202,891 | Nov. 11, 1923 | A. Wallis | Improvements in road roller forecarriages | steam rollers |
| GB-212,957 | Mar. 27, 1924 | A. Wallis | Improvements in the mounting of wheels for road vehicles, particularly road rollers | steam rollers |
| GB-233,967 | May 21, 1925 | A. Wallis | Improvements in steam generators particularly adaptable to road rollers, tractors and portable boilers | steam rollers |
