Drilldown: Patents
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Patents > Inventor country:
FR
& Applicant firm
:
Société anonyme Astra AB
or
Société anonyme des Aéroplanes Borel
or
Sperry Gyroscope Company
& Number of text pages:
3-4
& Number of claims:
7-60 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.