| Inventor | Northrop, Lucius C. |
| Invention | Door Fastening |
| Residence | Greenville |
| Dated | 2/8/1881 |
| Patent | 237,583 |
| Class | 292/141 |
| Assign | * |
| US Patent Office Record | http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0237583 |
| Local Copy of Patent Docs | http://library.clemson.edu/scpatimages/index.php?pn=237583 |