Drilldown: Patents
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Patents > Office
:
FR
or
JP
& Filing date:
1911
& Publication date:
February 1912
& IPCs
:
IPC B64C13/00
or
IPC B64C27/04
or
IPC B64C3/00
or
IPC B64C39/00 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 5 results in range #1 to #5.