Drilldown: Patents

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Patents > National tech categories : CA 244/53 or DE 77h & First filing: None

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LTA (13) · subsystem (12) · whole (7) · frame (6) · propeller (5) · balloon (5) · safety (5) · navigation (4) · gas (4) · parachute (4) · car (4) · stability (4) · flapping (4) · propulsion (4) · None (3) · electricity (3) · design (3) · toy (3) · hybrid (3)
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Showing below up to 43 results in range #1 to #43.

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