Drilldown: Patents
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Choose a table:
- Airplane (18)
- Airship (15)
- Companies (480)
- Event (141)
- Letters (683)
- Organizations (967)
- Patents (17617)
- Person (2158)
- Publications (24571)
- Techtypes (2383)
Patents > Year granted:
1920 - 1929
& Supplementary to patent:
None
& Related to aircraft
:
1/2
or
1912-01-30
or
No
or
`1
or
Other
& National tech categories:
AT 77d ![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
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![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
![](/aero/extensions/Cargo/drilldown/resources/filter-x.png)
Use the filters below to narrow your results.
airplane (2) ·
balloon (1) ·
biplane (1) ·
compartments (1) ·
construction (1) ·
design (2) ·
electricity (2) ·
engine (2) ·
frame (3) ·
gas (1) ·
LTA (1) ·
propeller (1) ·
propulsion (1) ·
radiator (1) ·
safety (1) ·
subsystem (2) ·
Tragfläche (1) ·
transmission (1) ·
whole (1) ·
wing (1) ·
wings (1)
Showing below up to 5 results in range #1 to #5.