“680,565.  PUMP BUCKET OR PISTON.  Fred D. Clinger, Owatonna, Minn. assignor of three-fourths to Oliver N. Olson, Willis Sperry, and Silas E. Ware, same place.  Filed Sept.4, 1900.  Serial No. 23,368.  (No Model.)”

Reference Data:

Official Gazette of the US Patent Office, Vol. 96, by US patent Office, 1901, page 1369