Drilldown: Patents

Jump to navigation Jump to search
Patents > National tech categories : DE 77h.6 or USPC 89/1.1 & Citations from after 1930: None

Use the filters below to narrow your results.

Office:
Inventors:
None (13) · Christian Lorenzen (7) · Jakob Haw (7) · Hellmuth Hirth (4) · Lucien Chauvière (2) · Paul Frederik Degn (2) · Joseph Hofmann (2)
Inventor country:
Applicant is inventor:
Tech fields:
propeller (50) · propulsion (16) · propellers (9) · None (8) · subsystem (6) · helicopter (5) · airplane (5) · metal (4) · marine (3) · electricity (3) · navigation (3)
Full specification filed date:
Granted:
Related to aircraft:
Assigned to:
National tech categories: (Click arrow to add another value)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:
Number of figures:

Showing below up to 78 results in range #1 to #78.

View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)


View (previous 250 | next 250) (20 | 50 | 100 | 250 | 500)