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Patents > Filing date: 1902 & First filing: Yes & Number of figures: 2-5

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LTA (7) · propulsion (6) · balloon (5) · Propellers (4) · dirigible (4) · frame (3) · propeller (3) · navigation (3) · kite (3) · None (2) · subsystem (2) · marine propulsion (2) · hot air (2) · heavier-than-air (2) · helicopter (2) · whole (2) · Airship (2) · construction (2) · design (2)
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Showing below up to 34 results in range #1 to #34.

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