I haven't used a German version (OS or Inventor) in a few years. There is a different version of Inventor for each language, and I doubt there is a way to have Inventor display the browser names in a different language. You would have to have an English Inventor to get the English browser names. but I don't think Autodesk supports Inventor in a different language than the OS.
The only exception is Content Center. For some reason it has an option to switch the language.
If you have the translations, you should be able to change the names via the API.
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