- 2
- The Lombard Governor Company Catalouge 26.
- Snow Water Wheel Governor manual page 3.
- Snow Water Wheel Governor manual page 2.
- Snow Water Wheel Governor manual.
- 25,769 Page 2.
- 25,769
- H. D. SNOW Patent number 151,319.
- SNOW GOVERNOR PATENT NUMBER 1,309.
- PATENT NUMBER 17,847. PAGE 3.
- PATENT NUMBER 17,847. PAGE 2.
- PATENT NUMBER 17,847. PAGE 1.
- PATENT NUMBER 17,847.
- PATENT NUMBER 17,847. DRAWING NUMBER 2.