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Patents > Office : CA or US & Number of text pages: 9

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None (5) · frame (5) · airplane (5) · stability (4) · propulsion (4) · LTA (4) · navigation (3) · marine (3) · HTA (3) · safety (2) · landing (2) · hydroaeroplane (2) · wings (2) · control (2)
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None (6) · USPC 244/72 (2) · USPC 244/233 (2)
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