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Patents > Application number : 1909505692 or None & Patent agent: Herbert Haddan & Co.

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LTA (7) · navigation (4) · balloon (4) · None (2) · parachutes (2) · Propellers (2) · propulsion (2) · helicopter (2) · frame (2) · safety (2) · military (2) · control (2) · car (2) · captive (2)
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