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Patents > CPCs : CPC B64C2700/6274 or CPC F03D3/02 & Number of diagram pages: 2-10

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Office:
Inventors:
Douglas Dobbins (2) · Alfred E. Wunderlich (2)
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Applicant person:
John Day De Prez (2) · Alfred E. Wunderlich (2) · Douglas Dobbins (2)
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Tech fields:
None (22) · Airplane (11) · Helicopter (8) · Hybrid (7) · Propellers (7) · Propulsion (6) · Control (5) · Design (5) · Ascension (4) · Construction (3) · motors (3) · lift (3) · Frame (3)
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