Drilldown: Patents
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Patents > Inventor country
:
CA
or
IT
or
RO
& Applicant firm:
None
& Applicant type
:
Hermann Burkardt
or
INDIV
& National tech categories
:
AT 77d
or
FR 6.2
or
GB 4 propel & steer ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 10 results in range #1 to #10.