Drilldown: Patents

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Patents > Office : DE or None & IPCs : IPC B64B1/58 or IPC B64C39/00

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Inventors:
None (7) · Ernst Georg August Baumgarten (3) · Carl Kropp (2) · Reinhold Richter (2) · Otto Koch (2) · Hugo Hückel (2)
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Tech fields:
LTA (24) · frame (9) · propeller (7) · design (6) · airplane (6) · propulsion (6) · car (6) · navigation (5) · None (4) · subsystem (4) · steering (4) · wings (4) · airship (4) · control (3) · compartments (3) · balloon (3) · gas (3) · rigid (3)
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Citations from after 1930:
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