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Patents > National tech categories : DE 77h or USPC 244/30 & IPCs : IPC B64C35/00 or None

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Inventors:
None (4) · Caspar Braun (3) · Emil Lehmann (3) · François Hennebique (2) · Heinrich Suter (2) · Albert Geisler (2) · Eugene F. Falconnet (2) · August Riedinger (2) · August Euler (2)
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Applicant person:
None (49) · Eugene F. Falconnet (2) · August Euler (2) · August Riedinger (2) · Emil Lehmann (2)
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Tech fields:
LTA (26) · None (20) · frame (19) · propulsion (15) · navigation (14) · propeller (10) · whole (9) · subsystem (9) · balloon (9) · safety (7) · design (6) · dirigible (6) · car (6) · stability (6) · kite (5) · hybrid (5) · flapping (5) · parachute (5) · wings (5)
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Citations from after 1930:
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