...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 |
| 4465321 | Compression loaded collapsible wheel Portable collapsible spokeless wheels are formed with a rotating circular wheel rim element defining a full circle and without a central axle, hub, or spokes. The wheel rim element is formed around its outer periphery with a land portion or tread portion ... | 08/14/1984 |