Drilldown: Patents
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Patents > Year filed:
1912
& Inventor country:
US
& Filing date:
October 1912
& Related to aircraft :
1852-08-14 or
Yes
& National tech categories :
DE 77h or
FR 6.3 or
USPC 244/22 or
USPC 244/233
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.