Drilldown: Patents
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Patents > Applicant type
:
INDIV
or
INIDV
& Filing date:
1930 - 1939
& Grant date:
December 15, 1931
& IPCs
:
IPC B64B1/62
or
IPC B64C1/00
or
IPC B64C3/38 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.