Drilldown: Patents
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Patents > Office
:
CU
or
GR
or
HU
& Grant date:
1920 - 1929
& Number of text pages:
1-2
& Number of claims:
3-8
& Number of figures:
6 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.