Drilldown: Patents
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Patents > Year granted:
1848
& Applicant type:
None
& Grant date:
1840 - 1849
& Supplementary to patent:
None
& Related to aircraft :
1/2 or
1912-01-30 or
No or
`1 or
flapping
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.