Drilldown: Patents
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Patents > Inventor country :
HU or
RO
& Filing date:
1910 - 1919
& National tech categories :
DE 77 or
DE 77h or
FR 6.4
& IPCs :
IPC B64C35/00 or
IPC B64C39/00
& Number of claims:
3
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.