Drilldown: Patents

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Patents > Tech fields : Propellers or stability & Number of claims: 10-12

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Office:
Inventors:
Alfred John Macy (6) · George Brougham Hubert Austin (3) · Ralph Hazlett Upson (2) · József Fenyvesi (2) · Alajos Biró (2) · Louis Blériot (2) · Edmund Sparmann (2) · Edmond Lévi (2) · John Seiler (2) · John Washington Wadsworth (2)
Inventor country:
Applicant person:
None (11) · Alfred John Macy (6) · John Washington Wadsworth (2) · George Brougham Hubert Austin (2) · József Fenyvesi (2) · Louis Blériot (2) · Edmond Lévi (2) · Edmund Sparmann (2) · Alajos Biró (2)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (14) · 1913781506 (2)
Granted:
Related to aircraft:
Patent agent:
None (24) · Munn & Co. (5) · Haseltine, Lake & Co. (4) · Boramé et Julien (2) · E. Blétry (2) · None (2) · Charles Hill (2) · Armengaud jeune (2)
National tech categories:
None (18) · FR 6.4 (9) · USPC 244/80 (5) · USPC 244/177 (5) · HU V/h (5) · USPC 244/45R (3) · USPC 244/90R (2) · USPC 244/51 (2) · GB 4 propel & steer (2) · AU 90.3 (2) · USPC 244/113 (2)
CPCs:
None (18) · CPC B64C17/00 (11) · CPC B64C13/00 (5) · CPC B64C2700/6295 (5) · CPC B64C23/005 (4) · CPC Y10S200/29 (3) · CPC B64C17/06 (3) · CPC B64C9/00 (2) · CPC B64C39/003 (2) · CPC B64C39/005 (2) · CPC B64C39/00 (2) · CPC B64C2700/6212 (2) · CPC B64B1/40 (2) · CPC B64B1/00 (2)
First filing:
Citations from after 1930:
Number of claims:

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