Drilldown: Patents
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propulsion (81) ·
propellers (64) ·
design (31) ·
Airplane (25) ·
None (17) ·
Marine (17) ·
propeller (16) ·
aerodynamics (14) ·
wings (13) ·
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lift (10) ·
navigation (10) ·
airship (9) ·
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construction (8) ·
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aerial propellers (7) ·
frame (7)
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Showing below up to 200 results in range #1 to #200.
