Drilldown: Patents
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Patents > Year granted:
1880 - 1889
& Inventor country
:
AU
or
CH
or
FR
or
US
or
None
& Assigned to:
None
& CPCs
:
CPC B64C3/00
or
CPC B64C33/02
& Number of text pages:
2-3 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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