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| Patents for J. J. Laass | |||||
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| Number | Date | Patentee | Title | Type | |
| 690,688 | Jan. 07, 1902 | C.J. Barnes | Combination Wrench | nut wrenches | |
| 751,763 | Feb. 09, 1904 | D. Wagor | Marking-Gage | special purpose gauges | |
| 837,677 | Dec. 04, 1906 | B.F. Ennis | Indicator for Truing Up Work | measurement gauges | |
| 845,716 | Feb. 26, 1907 | C. Miller | Ratchet Wrench | ratchet wrenches | |
| 845,717 | Feb. 26, 1907 | C. Miller | Socket Wrench | wrench sockets | |