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Klassen 1 Gyroplane
 
 Klassen-I
 
Inventor J.H. Klassen of California built this design in 1910. The machine had four large umbrella-like lifting surfaces. Klassen - who was Vice president of the Aero Club of California - expected much from this design which was shown at the Los Angeles Air Meet in January 1910.
 
 
 
 


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