Drilldown: Patents
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Patents > Filing date:
January 1911
& Publication date:
1911
& Supplementary to patent
:
Patent BE-1910-05-06-Santo
or
Patent FR-1908-392672
or
Patent NO-1915-12-15 Carl Alfred Johansson
& Number of claims:
2-4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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