Drilldown: Patents
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Patents > Grant date:
1911
& National tech categories:
FR 6.4
& IPCs
:
IPC B64C3/00
or
IPC B64C33/00
& First filing:
No ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 10 results in range #1 to #10.