Drilldown: Patents
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Patents > Year filed:
1890 - 1899
& Office
:
HU
or
IN
or
IT
& Application number
:
1732817
or
frame
or
None
& IPCs
:
IPC B64C3/38
or
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 8 results in range #1 to #8.