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| All Patents in class 403/152 | |||||
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| Number | Date | Patentee | Title | Type | |
| 130,671 | Aug. 20, 1872 | H. Stein | Improvement in Bedstead-Keys | socket wrenches | |
| 334,418 | Jan. 19, 1886 | W.P. Drake | Pitman Eye and Connection | industrial machine mechanisms | |
| 2,000,838 | May 07, 1935 | G. Gorton | Swingable Support for Engraving Machine Cutter Heads | metalworking machine mechanisms | |