Drilldown: Patents
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Patents > Applicant firm
:
Blackburn Aeroplane and Motor Co.
or
Société anonyme Astra AB
or
Sperry Gyroscope Company
or
None
& Full specification filed date:
May 1914
& Application number:
191325605D
& First filing:
Yes ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.