Drilldown: Patents
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Patents > Office
:
DE
or
ES
or
HU
or
RU
& Publication date:
1918
& Supplementary to patent
:
DE79446
or
None
& IPCs
:
IPC B64B1/58
or
IPC B64C11/00
or
None
& Family year:
1910 - 1919 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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