Drilldown: Patents
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Patents > Applicant type:
UNIV-PRO-GOV
& Filing date:
1880 - 1889
& Assigned to:
None
& CPCs
:
CPC B64B1/00
or
CPC B64C11/04
& Number of text pages:
1-2 ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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