Inventor Mason, Charles T.
Invention Compensating Pendulum
Residence Sumter
Dated 7/20/1880
Patent 230,305
Class 368/182
Assign *
US Patent Office Record http://patft1.uspto.gov/netacgi/nph-Parser?patentnumber=0229751
Local Copy of Patent Docs http://library.clemson.edu/scpatimages/index.php?pn=230305