Drilldown: Patents
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Patents > Office :
AH or
ES or
FR or
SAX
& Inventor country :
AT or
DZ or
RO
& Publication date:
1911
& National tech categories:
FR 6.4
& IPCs :
IPC B64C3/00 or
IPC B64C39/00
Use the filters below to narrow your results.
Showing below up to 3 results in range #1 to #3.