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| All Patents in class 198/389 | |||||
| Number | Date | Patentee | Title | Type | |
| 295,705 | Mar. 25, 1884 | G.R. Williams | Button Machine | button making machinery | |
| 3,208,578 | Sep. 28, 1965 | E.I. Odell | Method and Apparatus for Orientating Articles | metalworking machine mechanisms | |