Drilldown: Patents
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Patents > Publication date:
1900 - 1999
& CPCs:
CPC B64C2700/6281
& Citations from after 1930:
None
& Number of text pages:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Use the filters below to narrow your results.
Showing below up to 6 results in range #1 to #6.