Drilldown: Patents

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Patents > Office : DE or NL & Inventor country : DE or None & National tech categories : DE 77 or DE 77h.10 or FR 6.3 & IPCs : IPC B64C3/38 or None & First filing: No

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LTA (15) · propulsion (10) · balloon (8) · car (8) · frame (7) · navigation (7) · stability (3) · propeller (3) · None (3) · dirigible (2) · glider (2) · marine (2) · airplane (2) · captive (2) · hydrogen (2) · flapping (2) · wheels (2)
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Showing below up to 28 results in range #1 to #28.

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