Drilldown: Patents
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Patents > Applicant firm:
None
& Filing date:
1880 - 1889
& Grant date:
November 30, 1880
& Related to aircraft:
.5?
& National tech categories :
BE K or
DE 77h.5 or
USPC 244/153R or
USPC 244/22 or
USPC 244/80
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