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Operation and Care of Vehicle-Type Batteries
Manual for operation and care of storage batteries for use in Army depots.
Date:
June 7, 1920
Creator:
Vinal, George W.
System:
The UNT Digital Library
Metal Mine Ventilation and its Relation to Safety and Efficiency in Mining Operations
Report on mine ventilation and its relation to safety and efficiency.
Date:
June 1920
Creator:
Harrington, D.
System:
The UNT Digital Library