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Aerodrome
Patent for an aerodrome. Illustrations included.
Date:
April 16, 1912
Creator:
Helm, Amos J.
System:
The Portal to Texas History
Spoke-Tightener
Patent for a spoke tightener that reduces the strain on the felly.
Date:
June 4, 1912
Creator:
Norton, John W.
System:
The Portal to Texas History