Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (475)
- Event (141)
- Letters (683)
- Organizations (965)
- Patents (17514)
- Person (2104)
- Publications (24554)
- Techtypes (2370)
Patents > Office:
US
& Related to aircraft :
1909-11-30 or
Yes
& National tech categories :
USPC 244/153R or
USPC 244/80
& Citations from after 1930:
4
Use the filters below to narrow your results.
Showing below up to 1 result in range #1 to #1.