Drilldown: Patents
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Patents > Office:
FR
& Inventor country
:
DE
or
FR
& Applicant type
:
Hermann Burkardt
or
INIV
or
LTA
& Supplementary to patent
:
Patent FR-1909-420322
or
None
& CPCs:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.