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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 |
| 5239724 | Mechanism for advancing a rotating cylindrical member A mechanism for advancing a rotating cylindrical member which has a frame and opening to accept a cylindrical member extending therethrough in a first line, and an advancing roller for engagement with a cylindrical member extending through the frame openi... | 08/31/1993 |
