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| Patents for Louis H. Harriman | |||||
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| Number | Date | Patentee | Title | Type | |
| 697,701 | Apr. 15, 1902 | A.E. Ayer | Machinist's Scale | measurement gauges | |
| 744,411 | Nov. 17, 1903 | H. Sarasin | Spokeshave | spokeshaves | |
| 756,461 | Apr. 05, 1904 | H.O. Borduas | Micrometer Calipers | micrometers | |
| 803,800 | Nov. 07, 1905 | E.W. Bailey | Polishing-belt deflector | belt sanders | |