Drilldown: Patents

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Patents > Office: FR & Number of text pages: 5-30 & Number of diagram pages: 4

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None (7) · design (5) · airplane (5) · stability (4) · frame (4) · valve (3) · navigation (3) · LTA (3) · propellers (2) · automatic stability (2) · biplane (2) · construction (2) · gyroscope (2)
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