Drilldown: Patents
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- Airplane (18)
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- Patents (17514)
- Person (2101)
- Publications (24554)
- Techtypes (2370)
Patents > Year filed:
1890 - 1899
& Filing date:
1800 - 1899
& National tech categories:
AT 77d
& First filing:
No
Use the filters below to narrow your results.
balloon (2) ·
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design (1) ·
frame (1) ·
gas (1) ·
LTA (2) ·
navigation (1) ·
propeller (1) ·
propulsion (1) ·
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Showing below up to 2 results in range #1 to #2.