Title: Thill coupling
Patent number: 17,918
Date granted: 8/4/1857
View this patent at the USPTO.
Inventor: S. Coleman
Inventor: I. Sibbet
Title: Thill coupling
Patent number: 17,918
Date granted: 8/4/1857
View this patent at the USPTO.
Inventor: S. Coleman
Inventor: I. Sibbet