Hello Luke and Welcome.
Yes, there has been quite a bit of " borrowing " of Bang and Olufsen design and innovation over the years: Receivers, Speakers, headphones, and it continues along with rather obvious copies of recent B & O CD + DVD players. Flattery, I suppose if one is diplomatic.
You are also correct in that many of the earlier Bang & Olufsen model receivers did have Shortwave frequency options, as previously, this was the most popular form of radio communication throughout Europe.
In fact, Bang & Olufsen manufactured Shortwave sender / receivers for the Resistance during WW II, which could be hidden in a small leather portfolio or briefcase.
Who knows you might discover a B & O component out there too. Good Hunting !