skos:altLabel | - Northrop
- Northrop Aircraft
- Northrop Aircraft Company
- Northrop Aircraft Corporation
- Northrop Aircraft Incorporated
- Northrop Aircraft, Incorporated
- Northrop Aviation
- Northrop Aviation Company
- Northrop Corp
- Northrop NF-5B
- Northrop affair
- Northrop corporation
- Northrup
- Northrup Aircraft
- later companies of the same name
- northrop.com
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