Drilldown: Patents
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- Airplane (18)
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- Companies (475)
- Event (141)
- Letters (683)
- Organizations (964)
- Patents (17545)
- Person (2112)
- Publications (24562)
- Techtypes (2373)
Patents > Related to aircraft :
0.5 or
0? or
1852-08-14 or
`1 or
navigation
& IPCs :
IPC B64C31/06 or
IPC F42B10/26
& First filing :
No or
Yes
& Citations from after 1930:
None
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