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Facts about "Patent-US-807280.pdf"
| Application date | March 23, 1905 + |
| Application number | 251633 + |
| Assigned to | Frank M. Kegrize + |
| Invented by | Frank M. Kegrize + |
| Patent date | December 12, 1905 + |
| Patent description | Sistema di caricamento + |
| Patent number | 807280 + |
| Patent title | Self filling fountain pen + |
| Patented by | Kegrize + |
| Patented in | US + |
| Priority date | March 23, 1905 + |
