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| Patents for Edward E. Longan | |||||
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| Number | Date | Patentee | Title | Type | |
| 470,626 | Mar. 08, 1892 | W.J. Walker | Wrench | quick adjust wrenches | |
| 609,567 | Aug. 23, 1898 | J. Yerkes | Dowel-hole-boring machine | drilling and boring | |
| 706,798 | Aug. 12, 1902 | P.E. Chapman | Electric testing apparatus | electric or electronic testing apparatus | |