Indicator For Bottles (open access)

Indicator For Bottles

Patent for an indicator to show the amount of liquid removed and the amount remaining for bottles or other liquid packages of different dimensions and will help improve the process of refilling the bottle after liquid has been removed.
Date: May 8, 1906
Creator: Frkovic, Frank Andre
System: The Portal to Texas History
Reinforcement For Concrete Railroad Ties (open access)

Reinforcement For Concrete Railroad Ties

Patent for railroad ties reinforced by concrete. Illustrations included.
Date: May 8, 1906
Creator: Percival, Herbert E. & Key, Brewer W.
System: The Portal to Texas History