Drilldown: Patents
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Patents > Year filed:
1900 - 1909
& Inventor country:
FR
& National tech categories :
AT 77d or
DE 77 or
FR 6.3
& IPCs :
IPC B64C27/04 or
IPC B64C35/00 or
IPC B64C39/00
& CPCs:
CPC B64C39/005
Use the filters below to narrow your results.
Showing below up to 6 results in range #1 to #6.