Drilldown: Patents
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Patents > Applicant firm:
None
& Grant date:
March 20, 1919
& Assigned to:
None
& IPCs
:
IPC B64C33/02
or
IPC B64C39/00
& CPCs:
CPC B64C39/003
& Citations from after 1930:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.