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Patents > IPCs : IPC A63H27/133 or IPC B64B1/40 & First filing: Yes

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LTA (31) · balloon (10) · stability (9) · navigation (9) · car (5) · frame (4) · suspension (4) · propulsion (4) · design (3) · airship (3) · kite (3) · hybrid (3)
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Showing below up to 35 results in range #1 to #35.

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