Drilldown: Patents
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- Publications (24566)
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Patents > Year granted:
1920
& Office:
DE
& Grant date:
1920 - 1929
& Granted:
Yes
& Supplementary to patent
:
DE79446
or
Patent FR-1908-392672
or
Patent HU-1901-24148
or
None
& CPCs
:
CPC B64C13/00
or
CPC B64C2001/0081 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 2 results in range #1 to #2.