Drilldown: Patents
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Patents > Office
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& Supplementary to patent
:
Patent BE-1909-214032
or
Patent DE-1921-384750
or
Patent FR-1910-423792
& CPCs:
CPC B63H1/26 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 2 results in range #1 to #2.