Drilldown: Patents
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Patents > Year granted:
1910 - 1919
& Office
:
AH
or
CA
or
GB
& Applicant type
:
Hermann Burkardt
or
INDIV
or
None
& National tech categories:
GB 4 framework
& First filing:
Yes
& Number of diagram pages:
1 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.