Drilldown: Patents
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Patents > Office:
FR
& Publication date:
1914
& Supplementary to patent:
Patent GB-1912-21384
& National tech categories
:
FR 10.1
or
FR 6.2 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.