Drilldown: Patents
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Patents > Grant date:
June 1903
& Publication date:
1900 - 1999
& Related to aircraft
:
1852-08-14
or
Yes
& National tech categories
:
AT 77d
or
FR 6.3
or
USPC 244/90R
& Family year:
1903
& Citations from after 1930:
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