Drilldown: Patents

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Patents > National tech categories : DE 77h or USPC 476/64 & IPCs: None

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None (4) · Emil Lehmann (3) · Caspar Braun (3) · August Euler (2) · François Hennebique (2) · August Riedinger (2) · Heinrich Suter (2) · Albert Geisler (2)
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LTA (13) · frame (12) · None (9) · subsystem (9) · whole (8) · propulsion (8) · balloon (7) · navigation (7) · stability (5) · safety (5) · propeller (5) · kite (5) · design (5) · wings (5) · dirigible (4) · flapping (4) · electricity (4) · Flugmaschine (4) · flying machine (4)
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Showing below up to 68 results in range #1 to #68.

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