Drilldown: Patents
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Patents > Supplementary to patent
:
Patent FR-1915-525800
or
Patent US-1913-04-21 George Raymond Lawrence
& IPCs:
IPC B64C23/00
& CPCs
:
CPC B64C17/00
or
CPC B64C2700/6274
or
CPC B64C3/00
or
CPC B64C39/00
& First filing:
Yes ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 2 results in range #1 to #2.