Drilldown: Patents
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Patents > Year filed:
1908
& IPCs
:
IPC B64B1/58
or
IPC B64B1/62
or
IPC B64C31/06
& Number of text pages:
3-20000000 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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