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| 正面描述 | The obverse features a heraldic eagle with spread wings in high relief at center, rendered in the style of the U.S. Patent Office seal. The circumferential legend reads PATENT OFFICE UNITED STATES OF AMERICA, separated by a five-pointed star at the base. |
|---|---|
| 正面文字 | 登录 以查看详情 |
| 正面铭文 | ★ PATENT OFFICE UNITED STATES OF AMERICA |
| 背面描述 | The reverse displays a composite device symbolizing invention and technology, comprising a large toothed gear at left, a lightning bolt rising from behind, an atomic orbital symbol at center-right, and a laboratory flask in the lower right field. No lettering is present. |
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| 背面铭文 | 登录 以查看详情 |
| 铸造机构 | 登录 以查看详情 |
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