Inventor Middleton, Henry
Invention Improvement in Telegraph Transmitters
Residence Charleston
Dated 8/17/1875
Patent 166,712
Class 178/85
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0166,712
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=166712