Forgive me for the simple answer, but it's on the box. You are saying; "Aha! I was just waiting for someone to say that..I've looked and it ain't there!" But now I say; "Aha! My GF just did a rebate for the 753DF and the UPC was on a peel-off sticker that was on the box!" 😀😀 😉
I'm sure you looked for it, but look again. It might be on a sticker, on the bottom of the box. Good luck.