Drilldown: Patents
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Patents > Applicant type
:
FIRM
or
INDIV
& National tech categories
:
FR 6.2
or
HU V/h
& CPCs
:
CPC B64C39/005
or
None
& Family year:
1915
& Number of text pages:
2 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 9 results in range #1 to #9.