Drilldown: Patents
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Patents > Year granted:
1875
& Assigned to
:
1
or
None
& CPCs
:
CPC B64B1/40
or
CPC B64B1/58
or
CPC B64C11/346
& Family year:
1870 - 1879 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 3 results in range #1 to #3.