Drilldown: Patents
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Patents > Office
:
DK
or
FR
& Filing date:
January 1913
& Supplementary to patent
:
Patent BE-1909-214032
or
Patent GB-1909-8531
or
Patent GB-1911-29012
or
Patent GB-1913-9997
or
Patent NO-1915-12-15 Carl Alfred Johansson
or
Patent SE-1906-23283
& IPCs:
IPC B64C35/00 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 2 results in range #1 to #2.