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Patents > Patent agent : Henry Marsh, Jr. or J. Germain & Number of text pages: 2

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Tech fields:
airplane (12) · Frame (9) · Design (8) · stability (7) · propellers (7) · Control (7) · Construction (7) · propulsion (6) · None (5) · aerodynamics (5) · automatic stability (4) · helicopter (4) · safety (3) · equilibrium (3) · wings (3)
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CPC B64C27/12 (3) · CPC B64C33/02 (3) · CPC B64C2700/6274 (3) · CPC B64C23/005 (3) · CPC B64C2700/6281 (3) · CPC B64C3/00 (3) · CPC B64C2700/6295 (3) · CPC B64C39/00 (3) · CPC B64C3/18 (2) · CPC B64C17/00 (2) · CPC B64C17/06 (2) · CPC B64F2700/6226 (2) · CPC B64C25/06 (2) · CPC B64C25/62 (2) · CPC B64C2700/6233 (2) · CPC B64C2700/6216 (2)
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