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