Drilldown: Patents
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Patents > Office
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CA
or
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or
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or
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& Supplementary to patent
:
Patent AT-1911-57225
or
Patent DE-1895-98580
& CPCs
:
CPC B64C13/00
or
CPC B64C3/385
& Number of text pages:
6 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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