Drilldown: Patents
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Patents > Year granted:
1919
& Office
:
AT
or
CL
or
CU
or
FR
& Applicant firm:
None
& IPCs
:
IPC B64C3/00
or
IPC B64C33/02
or
IPC B64C39/00
& Number of figures:
1-4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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