Drilldown: Patents
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- Techtypes (2373)
Patents > Year granted:
1911
& Office
:
AT
or
SU
& Inventor country
:
AH
or
IT
& Applicant firm:
None
& Applicant type:
INDIV
& National tech categories
:
AT 77d
or
FR 6.2
or
USPC 244/80 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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