Drilldown: Patents

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Patents > Applicant is inventor: Yes & Publication date: November 1911 & Number of text pages: 1-2

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Henri-Marie-Edmond de Perthuis (2)
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Tech fields:
Airplane (16) · Stability (8) · Design (7) · Subsystem (7) · propellers (6) · propulsion (6) · Frame (5) · whole (4) · Automatic stability (4) · Construction (4) · Tragfläche (3) · aerodynamics (3)
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Showing below up to 37 results in range #1 to #37.

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