| Patents for Robert Frederick Hall |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| GB-189,414,557 | Jun. 01, 1895 | R.F. Hall | Improvements in ball-bearings | industrial machine bearings |
| GB-189,419,211 | Aug. 10, 1895 | R.F. Hall, C. Taylor | Improvements in profiling or outline-shaping machines | milling machines |
| GB-189,510,857 | Oct. 19, 1895 | R.F. Hall | Improvements in milling machinery | milling machines |
| 555,372 | Feb. 25, 1896 | R.F. Hall | Milling-machine | milling machines |
| 595,473 | Dec. 14, 1897 | R.F. Hall | Adjustable Spanner-Wrench | screw adjust wrenches |
