Drilldown: Patents
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Patents > Grant date:
1916
& Related to aircraft :
-1 or
0.5 or
1852-08-14 or
None
& IPCs :
IPC B64B1/00 or
IPC F42B 10/00
& Family year:
1910 - 1919
Use the filters below to narrow your results.
Showing below up to 2 results in range #1 to #2.