Drilldown: Patents
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Patents > Publication date:
1909
& National tech categories
:
BE K
or
FR 6.2
or
FR 6.3
or
FR 6.4
& First filing
:
Yes
or
None
& Number of claims:
None
& Number of diagram pages:
2-50000000 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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