Drilldown: Patents
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& National tech categories:
DE 77
& IPCs
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IPC B64B1/62
or
IPC B64C3/38
or
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 13 results in range #1 to #13.