Hydraulic Power Co

presumably this is shorthand for the London Hydraulic Power Co
1885 The mains of the Hydraulic Power Company were laid along the banks of the river (Thames) and were constantly charged with water at a pressure of 700 lb. per inch.[1]
1893 Machinery for the Deptford Station supplied by the Hydraulic Engineering Co
See Also
Sources of Information
- ↑ The Engineer 1885/05/08