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| All Patents in class 384/425 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,671,629 | May 29, 1928 | C.H. Doelger | Adjustable bearing | metal shearing machines | |
| 2,487,803 | Nov. 15, 1949 | H. Heimann | Spring retaining ring | fasteners | |