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Patents > Inventor location: Berlin & Application number : 190927140D or None

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LTA (7) · balloon (4) · wood (3) · frame (3) · airship (3) · projectile (2) · propellers (2) · safety (2) · design (2) · navigation (2) · compartments (2) · toy (2) · ballonet (2) · airplane (2) · whole (2)
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