Drilldown: Patents
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Patents > Office
:
DE
or
DK
& Inventor country
:
DE
or
HU
or
MX
or
None
& National tech categories
:
DE 77h.5
or
FR 6.3
& CPCs
:
CPC B64B1/00
or
CPC B64C17/00
or
CPC B64C23/005
& Citations from after 1930:
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Showing below up to 12 results in range #1 to #12.
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