Inventor Calvert, James Thomas
Invention Dental Engine
Residence Spartanburg
Dated 11/24/1891
Patent 463,855
Class *
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0463855
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=463855