Thaddeus and Erastus Fairbanks of St. Johnsbury, Vermont, were the inventors, and it was found to meet the want of farmers in weighing hemp, hay, etc. 威廉·亨利·杜利特.世纪发明.
Mr. Thaddeus Cahill of Washington appears to be the first to have invented the most successful of this type of machines. 威廉·亨利·杜利特.世纪发明.