| Periodicals and Newspapers | Save | ||
| 1 | Title: | Information to persons having business to transact at the Patent Office | |
| Creator: | United States Patent Office. | ||
| Publication: | Gideon & Co, Washington, | ||
| Call #: | T22S K | ||
| Extent: | v. ill. 24 cm. | ||
| Subjects: | United States. -- Patent Office | Patents -- United States | ||
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