Drilldown: Patents
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Patents > Applicant type
:
Hermann Burkardt
or
INDIV
or
INDIV + COMPANY
or
INDIV+COMPANY
or
Other
& Grant date:
1910 - 1919
& Supplementary to patent:
Patent DE-1909-06-23 Gustav Behrens
& Related to aircraft:
Partially
& National tech categories:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.