Drilldown: Patents

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Patents > Year granted: 1900 - 1909 & Office : DE or None & Number of text pages: 2

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Inventors:
None (10) · Emil Lehmann (4) · Joseph Hofmann (3) · Firmin Bousson (2) · G. Arturo Crocco (2) · Ottavio Ricaldoni (2) · Sebastian Finsterwalder (2) · August Riedinger (2)
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Tech fields:
LTA (24) · balloon (11) · propulsion (9) · frame (8) · whole (8) · subsystem (8) · propeller (8) · suspension (7) · None (7) · wings (6) · airplane (5) · gas (5) · flapping (5) · airship (5) · kite (4) · pressure (4) · helicopter (4) · car (4) · hybrid (4)
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