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The Texas Historian, Volume 31, Number 5, May 1971
Journal published by the Texas State Historical Association containing articles written by members of the Junior Historians about various aspects of Texas history.
Date:
May 1971
Creator:
Texas State Historical Association
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
Propeller
Patent for a boat propeller that does not create a vacuum behind it and is more efficient than other propellers.
Date:
July 23, 1912
Creator:
Blake, David H.
Object Type:
Patent
System:
The Portal to Texas History