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Patents > Applicant firm : John A. Roebling's Sons or None & National tech categories: HU V/h

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Airplane (159) · Design (107) · Propellers (87) · Subsystem (70) · Construction (62) · Frame (54) · Airship (52) · stability (51) · Wings (50) · whole (49) · Propulsion (48) · aerodynamics (42) · LTA (41) · automatic stability (30) · Control (24) · Lift (23) · steering (19) · Flapping (19) · Dirigibles (19) · helicopter (18)
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None (197) · Patent FR-1909-403985 (2) · Patent US-1903-821393 (2) · Patent FR-1909-399456 (2) · Patent AT-1911-57225 (2) · Patent BE-1913-07-12 Joseph de Pierpont de Burnot (2)
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