Drilldown: Patents

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Patents > National tech categories : DE 77h or USPC 123/144 & Number of text pages: 2

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Emil Lehmann (3) · None (2) · Antoine-Charles Mary (2) · August Riedinger (2) · Sebastian Finsterwalder (2) · Firmin Bousson (2)
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LTA (14) · whole (8) · balloon (7) · propulsion (7) · frame (6) · subsystem (5) · None (4) · flapping (4) · propeller (4) · hybrid (4) · gas (4) · kite (4) · wings (4) · car (3) · suspension (3) · steering (3) · navigation (3) · design (3)
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