The slide-valve and its functions, with special reference to modern practice in the United States; with ninety diagrams and illustrations T Technology
Water management policies, guidelines, provincial water quality objectives of the Ministry of Environment and Energy T Technology
The principles of washing illustrated by the hydraulic clothes washer, superior to any in use, Hamilton E. Smith, inventor and patentee, including the patent clothes drying room … with a complete set of laundry machinery T Technology
