Additional improvement patents, 1837-1861 /
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| OCLC: | 2646330 |
|---|---|
| Соавтор: | |
| Другие авторы: | |
| Язык: | English |
| Опубликовано: |
Washington :
National Archives and Records Service, General Services Administration,
1977.
|
| Серии: | Special list (National Archives (U.S.)) ;
no. 39. |
| Предметы: | |
| Формат: | Government Document Monograph Note that CRL will digitize material from the collection when copyright allows. |