Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (480)
- Event (141)
- Letters (683)
- Organizations (966)
- Patents (17614)
- Person (2144)
- Publications (24569)
- Techtypes (2381)
Patents > Year granted:
1916
& Office
:
GB
or
MX
or
US
& Supplementary to patent:
None
& National tech categories
:
USPC 244/89
or
USPC 244/90R
& CPCs
:
CPC B64C13/00
or
CPC B64C3/00
& Citations from after 1930:
None ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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Use the filters below to narrow your results.
Showing below up to 5 results in range #1 to #5.