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| Patents for Alden M. Drake | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,223,155 | Apr. 17, 1917 | A.M. Drake | Table driving and feeding mechanism for grinding machines | grinders | |
| 1,301,937 | Apr. 29, 1919 | J.N. Heald, A.M. Drake | Belt-tightener | grinding machines | |