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Patents > Grant date: 1910 - 1919 & IPCs : IPC B64C27/04 or IPC F02B75/28

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Inventors:
Édouard-Jean Bigourdan (3) · Alexis Beurrier (3) · Charles Wolf (2) · Edmond-Louis Douhéret (2) · Jesse James Dillon (2) · None (2)
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Applicant person:
Alexis Beurrier (3) · None (2) · Charles Wolf (2) · Jesse James Dillon (2) · Édouard-Jean Bigourdan (2) · Edmond-Louis Douhéret (2)
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Applicant is inventor:
Tech fields:
helicopter (28) · propulsion (13) · hybrid (12) · design (10) · propellers (10) · airplane (8) · ascension (8) · lift (6) · None (5) · sustentation (5) · heavier-than-air (5) · propeller (4) · HTA (4) · Frame (4) · wings (4) · Construction (4) · control (4) · whole (3) · stability (3) · gyroscope (3)
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Citations from after 1930:
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Showing below up to 56 results in range #1 to #56.

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