Drilldown: Patents
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Patents > Supplementary to patent
:
Patent FR-1908-398040
or
Patent GB-1909-8531
& IPCs
:
IPC B64C13/00
or
IPC B64C17/00
& Family year:
1900 - 1909 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 4 results in range #1 to #4.