Drilldown: Patents
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Patents > Office:
LU
& Inventor country:
DE
& Filing date:
1890 - 1899
& CPCs :
CPC B64B1/40 or
CPC B64C2700/6235 or
CPC B64C33/02 or
None
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.