Drilldown: Patents
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Patents > Year filed:
1894
& Office
:
BE
or
CA
or
CU
or
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or
RU
& First filing:
Yes
& Number of text pages:
1-2 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Showing below up to 1 result in range #1 to #1.