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| Patents for Robert A. Brown | |||||
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| Number | Date | Patentee | Title | Type | |
| 219,425 | Sep. 09, 1879 | G. Abrams | Improvement in Crank Screw-Drivers | screwdriver mechanisms | |
| 499,929 | Jun. 20, 1893 | O.E. Perrigo | Engine Lathe | engine lathes | |
| 3,162,059 | Dec. 22, 1964 | S.E. Farekas | Power Feed Clutch Mechanism | engine lathes | |
| 3,162,073 | Dec. 22, 1964 | S.E. Farekas | Half Nut Closing Arrangement | engine lathes | |
| 3,220,289 | Nov. 30, 1965 | S.E. Farekas | Intermediate Shaft Support Bearing | engine lathes | |
| 3,234,827 | Feb. 15, 1966 | J.F. Probst | Safety Interlock | ||