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Patents > Year granted: 1900 - 1909 & Tech fields: helicopter

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Office:
Inventors:
Maurice Léger (9) · Edwin Richard Mumford (3) · Joseph Chantraine (3) · Émile Dupont (3) · Désiré Sival (3) · Henri de Lostalot (3) · George Alphonzo Metcalf (2) · Joseph Maes (2) · Charles Wolf (2) · Charles Launcelot Garland (2) · Vassily Rebikov (2) · August Smikalla (2) · Jean Desbois (2)
Inventor country:
Applicant person:
None (12) · Maurice Léger (6) · Désiré Sival (3) · Henri de Lostalot (3) · Émile Dupont (3) · Edwin Richard Mumford (3) · Joseph Chantraine (3) · George Alphonzo Metcalf (2) · Charles Wolf (2) · Joseph Maes (2) · Jean Desbois (2) · Vassily Rebikov (2) · August Smikalla (2)
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Full specification filed date:
Application number:
None (33)
Granted:
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Related to aircraft:
Patent agent:
None (38) · J. Germain (4) · None (4) · Munn & Co. (3) · Allison Bros. (2) · Armengaud jeune (2) · G. de Mestral et F. Harlé (2) · Edmund Hunt & Co. (2) · Herbert Haddan & Co. (2)
National tech categories:
FR 6.4 (27) · None (22) · USPC 244/6 (6) · HU V/h (4) · USPC 244/65 (3) · USPC 244/68 (2) · AT 77d (2) · USPC 244/17.19 (2) · IT 8 (2) · USPC 244/17.21 (2) · DE 77h.6 (2) · DE 77h (2)
First filing:
Cites these patents:
Citations from after 1930:
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Showing below up to 91 results in range #1 to #91.

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