CROWELL v. NATHANIEL E. HARLOW. CROWELL v. GEORGE HARLOW. Circuit Court, D. Massachusetts. January 17, 1880. INVENTION?IMPROVED PROCESS OF CURING FISH.?An improvement in the process of curing fish by the removal of the mucous membrane is patentable, when it was not formerly known that such membrane was injurious to the keeping quality of the fish. […]