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| Patents for John H. Montstream | |||||
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| Number | Date | Patentee | Title | Type | |
| 723,704 | Mar. 24, 1903 | W. Lodge, W.L. Shellenbach, J.H. Montstream | Engine Lathe | engine lathes | |
| 1,194,653 | Aug. 15, 1916 | J.H. Montstream | Drop Hammer | drop hammers | |