Actually, I'd say their chord structure is BARELY similar. I got what you meant the first time.
Are you sure you're on the right page?
The chord structure for Minuetto is :
i V i V i V i V :|| I iv VII III VI iidim V i V7 i ||
For the Paganini, it is this:
i V i V i V i V \\ I iv VII III iv i V7 i || Yes, it is a few measures shorter, but there is definitely a resemblance. However, our standards of "similar" is different, so maybe that's the case.