Mollier Chart of Properties of Ammonia, 1923 (open access)

Mollier Chart of Properties of Ammonia, 1923

Mollier chart of properties of ammonia.
Date: May 1, 1923
Creator: United States. Bureau of Standards.
System: The UNT Digital Library
Guide Chart for Carbon Brush Terminals (Electric) (open access)

Guide Chart for Carbon Brush Terminals (Electric)

Diagrams and tolerances in inches for different size terminals.
Date: June 1, 1945
Creator: United States. Bureau of Standards.
System: The UNT Digital Library