US PATENT SUBCLASS 73 / 147
WIND TUNNEL: AERODYNAMIC WING AND PROPELLER STUDY
Current as of:
June, 1999
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MEASURING AND TESTING
147
WIND TUNNEL: AERODYNAMIC WING AND PROPELLER STUDY
DEFINITION
Classification: 73/147
(under the class definition) Subject matter in the form of wind tunnels; also means for studying the flow of fluid about plane wings, and the behavior of propellers both for air or water.
SEE OR SEARCH THIS CLASS, SUBCLASS:
116, for motor and engine testing.
