Drilldown: Patents
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Patents > Office
:
AH
or
AU
or
BE
or
CH
or
FR
& Applicant is inventor:
Yes
& Filing date:
May 1909
& Grant date:
September 1909
& Assigned to:
None
& Number of claims:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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