Drilldown: Patents
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- Airplane (18)
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- Letters (683)
- Organizations (964)
- Patents (17575)
- Person (2118)
- Publications (24564)
- Techtypes (2373)
Patents > Year granted:
1920 - 1929
& Office
:
AT
or
CU
or
DE
or
SU
& CPCs
:
CPC B64C3/00
or
CPC B64C39/005
or
None
& Cites these patents:
None
& Number of figures:
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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frame (1) ·
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propeller (1) ·
propulsion (1) ·
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snow (1) ·
subsystem (1)
Showing below up to 5 results in range #1 to #5.