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Patents > CPCs : CPC B64C23/005 or CPC B64C27/82 & Number of text pages: 5-50000000

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Office:
Inventors:
John William Oman (2) · Bruno von Bültzingslöwen (2)
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Applicant person:
John William Oman (2) · None (2) · Bruno von Bültzingslöwen (2)
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Tech fields:
None (15) · Airplane (13) · Frame (10) · propulsion (8) · propeller (8) · Hybrid (7) · Design (6) · Whole (6) · takeoff (6) · stability (6) · helicopter (5) · HTA (5) · ascension (5) · navigation (3) · wheels (3) · Propellers (3)
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None (2)
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