Drilldown: Patents
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Patents > Applicant type
:
Hermann Burkardt
or
INDIV
or
Other
& Filing date:
1917
& IPCs
:
IPC B64C27/04
or
IPC B64C3/18
& CPCs
:
CPC B64C2700/6235
or
CPC B64C39/08 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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