Automatic Crossing Signal (open access)

Automatic Crossing Signal

Patent for Automatic Crossing Signal
Date: November 21, 1916
Creator: Machac, Henry
System: The Portal to Texas History
Armor Unit for Gunners (open access)

Armor Unit for Gunners

Patent for armor that can be mounted on gunners units..
Date: November 28, 1916
Creator: Spence, John J.
System: The Portal to Texas History
Bolster Bearing (open access)

Bolster Bearing

Patent for Bolster Bearing
Date: November 21, 1916
Creator: Hayes, Richard S.
System: The Portal to Texas History