Drilldown: Patents
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Patents > Inventor country :
AT or
AU or
ES or
FR
& Filing date:
1912
& Related to aircraft:
Yes
& National tech categories :
AT 77d or
GB 4 propel & steer
& Number of diagram pages:
1
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.