Drilldown: Patents
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Patents > Office :
DE or
FR
& National tech categories :
DE 77h or
IT 8 or
USPC 244/3.23
& CPCs :
CPC B64B1/00 or
CPC B64C39/00
Use the filters below to narrow your results.
Showing below up to 4 results in range #1 to #4.