Title: Thermo pneumatic safety valve
Patent number: 17,401
Date granted: 5/26/1857
View this patent at the USPTO.
Inventor: S. Whitaker
Inventor: Ezra Cope
Title: Thermo pneumatic safety valve
Patent number: 17,401
Date granted: 5/26/1857
View this patent at the USPTO.
Inventor: S. Whitaker
Inventor: Ezra Cope