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| Patents for John E. Gavin | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 219,851 | Sep. 23, 1879 | S.C. Ellis | Improvement in journal-boxes | |
 | 305,305 | Sep. 16, 1884 | J.F. Nettleton, T.F. Hammer | Metallic Can | |
 | 350,007 | Sep. 28, 1886 | F.M. Leavitt | Drop-hammer | |
 | 366,842 | Jul. 19, 1887 | A.G. Johnson | Miter-box | |
 | 370,952 | Oct. 04, 1887 | F.M. Leavitt | Drop-hammer | |
 | 386,076 | Jul. 10, 1888 | F.M. Leavitt | Drop-hammer | |
 | 399,348 | Mar. 12, 1889 | G.M. Richards | Hydrocarbon Engine | |
| 1,264,319 | Apr. 30, 1918 | C.G. Mellonis | Transmission Mechanism | ||