Drilldown: Patents
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Patents > Year filed:
1914
& Office
:
BE
or
IN
& Filing date:
December 1914
& Supplementary to patent:
Patent FR-1913-468076
& National tech categories
:
BE K
or
USPC 244/153R
or
USPC 244/80 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.