Drilldown: Patents

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Patents > Applicant firm: None & Tech fields: helicopter & Number of claims: 3-4

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Office:
Inventors:
Édouard-Jean Bigourdan (3) · Thomas Augustus Dring (3) · Niels Waltersen Aasen (2) · Jacob Christian Hansen-Ellehammer (2) · Charles Wolf (2)
Inventor country:
Applicant person:
None (5) · Édouard-Jean Bigourdan (3) · Niels Waltersen Aasen (2) · Charles Wolf (2) · Jacob Christian Hansen-Ellehammer (2)
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Application number:
None (11)
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Related to aircraft:
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National tech categories:
None (14) · FR 6.4 (12) · USPC 244/6 (6) · HU V/h (5) · USPC 244/65 (4) · USPC 244/51 (2) · USPC 244/66 (2)
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