Drilldown: Patents
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Patents > Inventor country
:
AT
or
AU
or
CA
& Filing date:
1910 - 1919
& National tech categories
:
CA 244/10
or
FR 5
or
USPC 244/90R
& CPCs:
CPC B64C2700/6235
& Number of claims:
5-20 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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