“M. K. L. Co. KENT. OHIO….” – “NO” – “NIN”. 3 1/2″ high x 2″ wide. Alloy body. Steel shackle. Brass dial.Patent #695472. Ultimately Miller was awarded a 1907 combination padlock patent US Patent #863868. We have not found any locks marked with the 1907 patent date. These are the only patents awarded to Miller.