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| All Patents in class 312/217 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,916X | Apr. 13, 1830 | E. Skinner | Saving locks for locking drawers | household tools | |
| 727,586 | May 12, 1903 | G.W. Chaffin | Hardware-dealers' screw-cases | ||
| 6,634,726 | Oct. 21, 2003 | G.R. Slivon | Multiple Drawer Cabinet Allowing One Drawer Opened at a Time | ||