I want to know the answer to the following question:
What body of the federal government credits New Haven resident Louis Lassen with inventing the hamburger and steak sandwich?
All the background I'm provided with is that "A second New Haven gastronomical claim to fame is Louis' Lunch, which is located in a small brick building on Crown Street and has been serving fast food since 1895.". Is that enough to answer the question?
Answer: no