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| Patents for John E. Parker | |||||
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| Number | Date | Patentee | Title | Type | |
| 292,342 | Jan. 22, 1884 | J.R. McMillan | Combined Vise and Lathe | vises | |
| 296,254 | Apr. 01, 1884 | C. Van Haagen | Manufacture of drills | making drills and augers | |
| 299,484 | May 27, 1884 | H.B. Larzelere | Portable Engine | portable steam engines | |
| 426,850 | Apr. 29, 1890 | J. Parker | Barrel-setting-up machine | barrel making machines | |
| 715,326 | Dec. 09, 1902 | S.E. Walling | Planer Chuck | metal planer chucks | |
| 720,993 | Feb. 17, 1903 | A.D. Allen | Rotary Engine | rotary steam engines | |