Drilldown: Patents
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Patents > Office
:
AH
or
CA
or
DK
& Grant date:
1900 - 1909
& National tech categories
:
CA 115/32
or
GB 4 propel & steer
or
USPC 244/22
& First filing:
No
& Number of claims:
4 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.