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| Patents for George D. Lambert | |||||
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| Number | Date | Patentee | Title | Type | |
| 100,642 | Mar. 08, 1870 | G.D. Lambert | Improvement in clamps | clamps | |
| 670,677 | Mar. 26, 1901 | D.J. Kelsey | Draftsman's Protractor | protractors | |