Title: Steam whistle
Patent number: 46,910
Date granted: 3/21/1865
View this patent at the USPTO.
Inventor: C. Kupferle
Inventor: J. Ward
Title: Steam whistle
Patent number: 46,910
Date granted: 3/21/1865
View this patent at the USPTO.
Inventor: C. Kupferle
Inventor: J. Ward