Drilldown: Patents
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Patents > Office
:
DE
or
JP
& National tech categories
:
DE 77h.5
or
USPC 244/45R
& IPCs:
IPC B64C3/00
& CPCs
:
CPC B64C2700/6235
or
CPC B64C2700/6256
or
CPC B64C35/00
& First filing:
Yes
& Number of text pages:
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Use the filters below to narrow your results.
Showing below up to 7 results in range #1 to #7.