Home / HISTORICAL WATER POWER ENGINEERING. 71
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- Brad's vintage machine shop manufacturing history project.
- Page 6.
- Page 5.
- Page 4.
- Page 3.
- Page 2
- Speed Control History.
- Patent number 341,577. Sheet 2.
- Patent number 341,577. Sheet 3.
- Turbine water wheel patent number 341,577. Sheet 1 of 3.
- Patent number 341,577. 3.
- Patent number 341,577. 2
- Patent number 341,577. 1
- Patent number 1,476,914. Page 3.
- Patent number 1,476,914. Page 2.