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Map of Standard Time Zones of the United States and Adjacent Parts of Canada and Mexico as of January 1, 1948
Map of the United States and surrounding areas with time zones marked and labeled in red. Bodies of water are marked, with depth marked by hatchures, as well as state lines and major cities..
Date:
January 1, 1948
Creator:
Geological Survey (U.S.)
Object Type:
Map
System:
The UNT Digital Library
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.
Object Type:
Report
System:
The UNT Digital Library
Table and Mollier chart for ammonia below -60° F
A report containing a table and Mollier chart for ammonia below -60° F.
Date:
November 1, 1948
Creator:
Meyers, Cyril H.
Object Type:
Report
System:
The UNT Digital Library
High-Frequency Voltage Measurement
Fundamental principles and techniques used for voltage measurements primarily for frequencies in the upper audio- and radio-frequency ranges and including part of the ultrahigh frequency range.
Date:
September 1, 1949
Creator:
Selby, Myron C.
Object Type:
Report
System:
The UNT Digital Library