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| Patents for Richard F. Dow | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 608,854 | Aug. 09, 1898 | L.E. Harper, C.L. Grohmann | Ball-bearing | |
 | 612,239 | Oct. 11, 1898 | L.E. Harper, C.L. Grohmann | Machine for dressing metals or other materials | |
 | 612,240 | Oct. 11, 1898 | C.L. Grohmann, L.E. Harper | Machine for dressing and grinding metal | |
 | 612,412 | Oct. 18, 1898 | C.L. Grohmann | Index-head for milling-machines | |
| 612,466 | Oct. 18, 1898 | C.C. Tyler, C.L. Grohmann | Milling-machine | ||
 | 1,233,994 | Jul. 17, 1917 | R.F. Dow | Machine for taper-forming | |