Drilldown: Patents

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

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None (32) · LTA (14) · propulsion (9) · balloon (7) · navigation (7) · car (7) · frame (6) · airplane (4) · stability (4) · propeller (3) · marine (2) · hydrogen (2) · flapping (2) · dirigible (2) · wheels (2) · captive (2)
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Showing below up to 59 results in range #1 to #59.

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