Drilldown: Patents

Jump to navigation Jump to search
Patents > Office : CH or US & Grant date: November 1911

Use the filters below to narrow your results.

Year filed:
Year granted:
(There are no values for this filter)
Office: (Click arrow to add another value)
Inventors:
Francis Erwin BORKENHAGEN (2)
Inventor country:
Applicant person:
BORKENHAGEN FRANCIS E (2)
Applicant firm:
Applicant type:
Applicant is inventor:
Tech fields:
None (18) · frame (5) · airplane (5) · stability (4) · Propeller (4) · rudder (3) · propulsion (3) · design (3) · navigation (3) · whole (2) · subsystem (2) · landing (2) · HTA (2) · wings (2) · control (2) · equilibrium (2)
Filing date:
Full specification filed date:
Granted:
Related to aircraft:
National tech categories:
None (4) · USPC 244/45R (3) · USPC 244/90R (3) · USPC 244/93 (2) · USPC 244/60 (2) · USPC 244/51 (2) · USPC 244/119 (2)
Family year:
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

Showing below up to 40 results in range #1 to #40.

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


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