Drilldown: Patents

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Patents > Publication date: 1900 - 1999 & Patent agent: de Bongé & Citations from after 1930: None

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LTA (10) · Propellers (10) · Propulsion (9) · design (6) · None (4) · Stability (4) · Airplane (4) · Subsystem (3) · helicopter (3) · airship (3) · balloons (3) · Marine (2) · gyroscope (2) · construction (2) · Cables (2) · Equilibrium (2) · frame (2) · military (2)
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Showing below up to 31 results in range #1 to #31.

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