Drilldown: Patents
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Patents > Office
:
FR
or
GB
or
MX
& Filing date:
1908
& Supplementary to patent
:
Patent BE-1909-214032
or
Patent HU-1901-24148
or
Patent NO-1915-12-15 Carl Alfred Johansson
or
None
& National tech categories:
FR 6.4
& CPCs
:
CPC B64B1/40
or
CPC B64C1/00
& Number of text pages:
4-20 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 2 results in range #1 to #2.