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Automobile Torpedo
Patent for a submarine torpedo which explodes in the hull of a vessels it hits.
Date:
July 18, 1911
Creator:
Douglas, William M.
System:
The Portal to Texas History
Self-Oiling Handsaw.
Patent for invention of a handsaw which is an improvement of current version. This is simple, low cost and convenient handsaw and is operated easily without removing the grip.
Date:
July 18, 1916
Creator:
Pearson, Robert Bartley
System:
The Portal to Texas History