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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 3976006 | Printing press register guides A snap-on drop away register guide for use with a Heidelberg platen in a Heidelberg printing press includes a reciprocating spring biased plunger having transversely mounted thereon, for oscillating movement, a retractable guide plate. A camming arrangeme... | 08/24/1976 |
