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Patents > CPCs: CPC B64C2700/6281 & First filing : No or Other & Number of text pages: 3-4

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William Everett Sylvester Coyne (2) · Alexis Beurrier (2) · Peter Pitcairn Carmichael (2) · Jesse James Dillon (2) · Édouard-Jean Bigourdan (2)
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Peter Pitcairn Carmichael (2) · Alexis Beurrier (2) · Jesse James Dillon (2) · Édouard-Jean Bigourdan (2)
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Tech fields:
helicopter (18) · None (7) · propulsion (5) · hybrid (5) · Airplane (5) · ascension (4) · propellers (4) · Design (3) · HTA (2) · wheels (2) · structure (2) · steering (2) · stability (2) · propeller (2) · lift (2) · Wings (2)
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Showing below up to 41 results in range #1 to #41.

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