Robuta

https://www.wipo.int/en/web/treaties/classification/nice/index

Nice Agreement Concerning the International Classification of Goods and Services for the Purposes...

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https://thepointsguy.com/news/delta-american-interline-agreement/

American and Delta Make Nice, Restore Interline Agreement - The Points Guy

The two carriers have re-established their interline agreement, an improvement for passengers.

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