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Patents > Inventor country: DE & Patent agent : Gaston Rose or Herbert Haddan & Co.

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LTA (9) · frame (6) · design (5) · control (4) · stability (4) · balloon (4) · hydroplane (4) · landing (4) · hybrid (3) · propellers (3) · flapping (3) · rudder (3) · construction (3) · navigation (3)
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