Drilldown: Patents
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Patents > Filing date:
1912
& Related to aircraft:
1
& National tech categories :
FR 6.4 or
HU V/h or
USPC 244/153R
& IPCs:
IPC B64C17/00
& First filing:
No
& Number of text pages:
1-2
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.