| Inventor | Parker, Horace |
| Invention | Improvement in Compounds for Dental Impressions |
| Residence | Aiken and Edgefield |
| Dated | 7/7/1874 |
| Patent | 152,815 |
| Class | 160/38.35 |
| Assign | * |
| US Patent Office Record | http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0152,815 |
| Local Copy of Patent Docs | http://library.clemson.edu/scpatimages/index.php?pn=152815 |