Drilldown: Patents
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Patents > Applicant type
:
FIRM
or
Hermann Burkardt
or
INDIV
or
UNIV-PRO-GOV
& Supplementary to patent:
Patent BE-1911-04-14 Lucien-Constant-Joseph Harel
& Related to aircraft
:
.5?
or
None
& Number of text pages:
2-3 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.