Drilldown: Patents
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- Airplane (18)
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- Letters (683)
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- Patents (17589)
- Person (2128)
- Publications (24566)
- Techtypes (2377)
Patents > Office
:
FR
or
MX
or
SAX
& CPCs
:
CPC B64B1/40
or
CPC B64C2700/6212
or
CPC B64C2700/6235
or
CPC B64C39/00
or
CPC B64C39/005
& Family year:
1918
& Number of text pages:
2-3 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 7 results in range #1 to #7.