Drilldown: Patents
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Patents > Office :
FI or
FR
& Grant date:
March 1919
& Related to aircraft:
1
& IPCs :
IPC B64B1/58 or
IPC B64B1/62 or
IPC B64C3/38
& Number of figures:
4-6
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.