US PATENT SUBCLASS 244 / 67
.~.~ Body encircling


Current as of: June, 1999
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244 /   HD   AERONAUTICS

62  DF  AIRCRAFT PROPULSION {7}
65  DF  .~ Screw {4}
67.~.~ Body encircling


DEFINITION

Classification: 244/67

(under subclass 65) Aircraft screw propellers arranged to rotate about the external periphery of aircraft bodies.