Drilldown: Patents
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Patents > Year filed:
1910 - 1919
& Year granted:
1920
& IPCs:
IPC B64C39/00
& Number of figures:
5-9
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None (1) ·
aerodynamics (1) ·
airplane (1) ·
balance (1) ·
design (1) ·
frame (1) ·
HTA (1) ·
lift (1) ·
propulsion (1) ·
stability (1)
Showing below up to 3 results in range #1 to #3.