Drilldown: Patents

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Patents > Office : ?? or CH or DE & Inventor country : DE or RO & IPCs : IPC B64B1/58 or None & First filing: Yes & Number of diagram pages: 1 & Number of figures: 1-2

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LTA (7) · propulsion (4) · None (3) · airship (3) · frame (3) · rigid (2) · marine (2) · compartments (2) · Tragkörper (2) · control (2) · dirigible (2) · propeller (2) · helicopter (2) · heavier-than-air (2)
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