Drilldown: Patents
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Patents > Inventor country
:
AT
or
RU
& Assigned to
:
Albert L. Watters
or
Sperry Gyroscope Company
or
None
& National tech categories:
None
& IPCs:
IPC B64C11/00 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 3 results in range #1 to #3.