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| Patents for B. Krueper | |||||
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| Number | Date | Patentee | Title | Type | |
| CA-52,662 | Jun. 17, 1896 | H. Markel | Ratchet Wrench | ratchet wrenches | |
| 600,598 | Mar. 15, 1898 | A.P. Sibley | Automatic stop for self-feed drilling-machines | drill presses | |