Drilldown: Patents
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Patents > Office
:
CH
or
MX
or
SAX
& Inventor country:
MC
& National tech categories:
CH 115
& Citations from after 1930:
None
& Number of text pages:
3-4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.