Drilldown: Patents
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Patents > Applicant firm
:
Luft Fahrzeug G.m.b.H.
or
Sperry Gyroscope Company
or
None
& Grant date:
April 6, 1920
& National tech categories:
USPC 244/218
& IPCs
:
IPC B64C3/00
or
IPC B64C3/38
or
IPC B64C39/00
& CPCs
:
CPC B64C2700/6274
or
CPC B64C3/54
or
CPC B64C35/00 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.