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| Patents for Doebler Mfg. Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 549,837 | Nov. 12, 1895 | D. Weir | Drill-chuck | |
| CA-51,626 | Mar. 11, 1896 | D. Weir | Drill chuck | ||
| CA-52,043 | Apr. 22, 1896 | D. Weir | Drill chuck | ||
| GB-189,607,812 | May 16, 1896 | D. Weir | Improvements in drill-chucks | ||
 | 1,022,166 | Apr. 02, 1912 | D. Weir | Chuck | |
 | 1,225,089 | May 08, 1917 | D. Weir | Chuck | |