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| All Patents in class 29/254 | |||||
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| Number | Date | Patentee | Title | Type | |
| 446,622 | Feb. 17, 1891 | F.A. Flanegin | Drill Jar | well drilling machines | |
| 900,337 | Oct. 06, 1908 | W.B. Wingate | Flue Plugger | boiler repair tools | |
| 2,561,577 | Jul. 24, 1951 | R.G. Knudsen | Pneumatic Impact Pullers and the Like | ||
| 3,791,012 | Feb. 12, 1974 | A.S. Jenkin | Traction Applying Tool | locking pliers | |