Olmsted Township, OH, US
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Patent Grant
The United States of America as Represented by the Administrator of National...
Charles J. Trefny
B64 - AIRCRAFT AVIATION COSMONAUTICS
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Patent Grant
The United States of America as Represented by the Administrator of National...
Charles J Trefny
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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Patent Application
USA as represented by the Administrator of the National Aeronautics and Space...
Charles J. Trefny
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
