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| All Patents in class 175/293 | |||||
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| Number | Date | Patentee | Title | Type | |
| 51,217 | Nov. 28, 1865 | C.A. Reed | Drill-jar | ||
| 446,622 | Feb. 17, 1891 | F.A. Flanegin | Drill Jar | well drilling machines | |
| 631,177 | Aug. 15, 1899 | H.W. Rank | Jar for Well Drilling Tools | well digging or drilling tools | |