Drilldown: Patents
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- Airplane (18)
- Airship (15)
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- Letters (683)
- Organizations (964)
- Patents (17557)
- Person (2115)
- Publications (24564)
- Techtypes (2373)
Patents > Year filed:
1888
& Year granted:
1880 - 1889
& Supplementary to patent :
Patent DE-1907-206614 or
Patent GB-1909-12556 or
None
& Related to aircraft:
Yes
& National tech categories :
AT 77d or
DE 77 or
GB 4 propel & steer
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.