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 & IPCs : IPC B64C3/38 or None & First filing: No

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LTA (14) · propulsion (8) · balloon (7) · navigation (7) · car (7) · frame (6) · stability (3) · None (3) · dirigible (2) · hydrogen (2) · wheels (2) · propeller (2) · airplane (2) · captive (2)
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Showing below up to 24 results in range #1 to #24.

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