Title: Rectifying apparatus
Patent number: 20,967
Date granted: 6/20/1858
View this patent at the USPTO.
Inventor: Gardener Waters
Inventor: John Harnett
Title: Rectifying apparatus
Patent number: 20,967
Date granted: 6/20/1858
View this patent at the USPTO.
Inventor: Gardener Waters
Inventor: John Harnett