Drilldown: Patents

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Patents > Tech fields: propulsion & Number of text pages: 2 & Number of claims: 4-90

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Office:
Inventors:
None (2) · Albert Hugo Friedel (2) · Jean Desbois (2) · Carl Hanschke (2) · Ferdinand Porsche (2)
Inventor country:
Applicant person:
None (17) · Carl Hanschke (2) · Jean Desbois (2) · Ferdinand Porsche (2) · Albert Hugo Friedel (2)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (41)
Granted:
Related to aircraft:
Patent agent:
None (36) · Munn & Co. (7) · None (4) · E. Blétry (3) · R. S. & A. B. Lacey (2)
National tech categories:
None (15) · FR 6.4 (10) · HU V/h (5) · DE 77h.6 (3) · AT 77d (3) · USPC 244/65 (3) · FR 6.3 (3) · USPC 244/20 (3) · USPC 244/70 (3)
CPCs:
None (17) · CPC B64B1/00 (8) · CPC B64C23/005 (7) · CPC B64C39/005 (6) · CPC B64C11/00 (4) · CPC B64C2700/6295 (3) · CPC B64B1/58 (3) · CPC B64C2700/6274 (3) · CPC B64C33/02 (3) · CPC B64C27/82 (2) · CPC B64D27/04 (2) · CPC B64C39/008 (2) · CPC B64C2700/6281 (2) · CPC B64C33/00 (2) · CPC B64C11/04 (2) · CPC B64C11/006 (2) · CPC B64C39/00 (2) · CPC B64C39/026 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of claims:
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