Drilldown: Patents
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- Airplane (18)
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- Letters (683)
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- Patents (17649)
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- Publications (24578)
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aerial navigation (1) ·
Aerial Navigation* (1) ·
aerial propellers (1) ·
Aerial Screw Navigator (1) ·
aerostat (3) ·
ascension (2) ·
balloon (2) ·
balloons (1) ·
heavier-than-air (1) ·
hybrid (2) ·
LTA (9) ·
marine (8) ·
marine propellers (1) ·
navigation (14) ·
piloting (1) ·
propellers (6) ·
propulsion (7) ·
steering (1) ·
submarine (6) ·
Velocipede (1)
Showing below up to 19 results in range #1 to #19.
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