Inventor Raab, James M.
Invention Railway frog
Residence Charleston
Dated 9/25/1860
Patent 30155
Class *
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0030155
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=30155