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| Patents for E. T. Walker | |||||
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| Number | Date | Patentee | Title | Type | |
| 378,946 | Mar. 06, 1888 | J.H. Baker | Nail-Holding Attachment for Hammers | nail holding | |
| 396,753 | Jan. 29, 1889 | F.C. Knowles, R.B. Magee | Pipe Tongs | pipe tongs | |