Drilldown: Patents
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Patents > Year granted:
1916
& Inventor country :
RO or
US
& National tech categories :
AT 77d or
FR 6.4 or
HU V/h
& IPCs :
IPC B64C17/06 or
IPC B64C3/54
& CPCs :
CPC B64C17/06 or
CPC B64C2700/6235
& First filing:
No
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Showing below up to 1 result in range #1 to #1.