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Patents > National tech categories : DE 77 or USPC 244/19 & Number of claims: 1-2

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Inventors:
Ernst Georg August Baumgarten (3) · Carl Alfred Johansson (3) · F. Gaebert (3) · Otto Schmidt (2) · Raphael Ernst May (2) · Frederick William Brearey (2) · Carl Georg Rodeck (2) · Federico Capone (2) · Carl Friedrich Billwiller (2)
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None (18) · Carl Alfred Johansson (3) · Ernst Georg August Baumgarten (3) · Frederick William Brearey (2) · Federico Capone (2) · F. Gaebert (2) · Raphael Ernst May (2) · Carl Georg Rodeck (2) · Carl Friedrich Billwiller (2) · Otto Schmidt (2)
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Tech fields:
LTA (47) · propulsion (27) · balloon (20) · navigation (13) · frame (12) · car (11) · propeller (10) · airship (8) · kite (7) · stability (7) · ornithopter (6) · control (6) · steering (5) · marine (5) · dirigible (5) · None (5) · captive (5) · piloting (4) · flapping (4)
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