Inventor Warren, Albert G.
Invention Electric Railway Signal
Residence Mayesville
Dated 7/28/1885
Patent 323,243
Class 246/168
Assign 1/4 to Alfred A. Strauss, of same place
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0323243
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=323243