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| File information | |
| Filename: | us0d0003834-001.jpg |
| Keywords: | Birmingham / Allegheny / Pennsylvania / A. S. Nicholson / G. H. Christy |
| Inventor's Name: | Daniel C. Ripley |
| Patent Date: | February 1, 1870 |
| Pattern Name/Number: | Unknown |
| Original Manufacturer: | Unknown |
| Date added: | Apr 19, 2019 |