Title: Steam generator
Patent number: 111,298
Date granted: 1/31/1871
View this patent at the USPTO.
Inventor: C. Ahrens
Inventor: F. Kamman
Title: Steam generator
Patent number: 111,298
Date granted: 1/31/1871
View this patent at the USPTO.
Inventor: C. Ahrens
Inventor: F. Kamman