Drilldown: Patents
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Patents > Related to aircraft :
1 or
1912-01-30 or
DE 369478
& National tech categories :
DE 77h or
FR 6.2 or
USPC 244/30
& IPCs :
IPC B64C39/00 or
None
& First filing:
None
& Number of diagram pages:
1
& Number of figures:
2-5
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