...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 |
| 4876751 | Automatic toilet flush control system An automatic flush control system is shown for a toilet of the type employing a first water flow to create a waste slurry in the toilet and a second water flow to cause the waste slurry to be pumped out of the toilet to a sewer connection. An interruptibl... | 10/31/1989 |