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Patents > National tech categories : CA 244/53 or DE 77h & First filing: Yes

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LTA (12) · propulsion (5) · frame (5) · None (4) · whole (4) · navigation (4) · Flugmaschine (3) · propeller (3) · flying machine (3) · kite (3) · wings (3) · control (3) · hybrid (2) · airfoil (2) · tail (2) · subsystem (2) · steering (2) · balloon (2) · design (2)
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Showing below up to 37 results in range #1 to #37.

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