Sreekanth

The Delphion Integrated View |
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US3041012 -
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Gibbs | ||||||||||||||||||||||||||||||
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1962-06
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244/017.23: AERONAUTICS AND ASTRONAUTICS; AIRCRAFT, HEAVIER-THAN-AIR; Helicopter or auto-rotating wing sustained, i.e., gyroplanes; Having plural lifting rotors 416/129: FLUID REACTION SURFACES (I.E., IMPELLERS); PLURAL IMPELLERS HAVING RELATIVE MOVEMENT OR INDEPENDENT SUPPORTS; Coaxial rotation; Oppositely rotating impellers; Engine driven | ||||||||||||||||||||||||||||||
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4 patents reference this one
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| 19 pages total High Resolution Low Resolution: |
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