Drilldown: Patents
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Patents > Office :
AT or
CU or
UN
& Inventor country :
AT or
ES
& Filing date:
August 1911
& Publication date:
1915
& Related to aircraft :
1910562264 or
Yes
& National tech categories :
AT 77d or
FR 6.3
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.