Ernest Thompson Seton's One and Only U.S. Patent

To all whom it may concern:
Be it known that I, Ernest Thompson Seton, a subject of the King of Great Britain and a resident of Coscob, in the County of Fairfield, State of Connecticut, have invented certain new and useful Improvements in Steelyards...

So begins the one and only US Patent known to have been granted to Seton in 1911.

See the whole patent here.