I'm quite surprised that they ignored her past - she was married to Friedrich Mandl, an arms manufacturer. She learned about military technology from his friend

I'm quite surprised that they ignored her past - she was married to Friedrich Mandl, an arms manufacturer. She learned about military technology from his friends. So obvious option - that historians considers - is that she basically patented ideas she obtained/discussed during her marriage. Missing details are also behind the reason why she could not reproduce some of them.