Drilldown: Patents
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Patents > Application number
:
propeller
or
None
& Supplementary to patent
:
Patent GB-1909-12556
or
Patent GB-1909-26034
& Assigned to:
None
& IPCs
:
IPC B64C23/00
or
None
& Citations from after 1930:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 12 results in range #1 to #12.