Pat LaFrieda Meat Purveyors it created the customized hamburger patty for Keith McNally's Minetta Tavern. Pat LaFrieda Meat Purveyors Pat LaFrieda Meat Purveyors is a third generation meat wholesaler based in North Bergen, New Jersey that specializes in dry-aged steaks and artisanal burger patties but also supplies selected cuts of beef, pork, poultry, veal, lamb and buffalo. The company provides meat for the “Black Label Burger” at Minetta Tavern, as well as other signature custom blends at New York City restaurants such as Shake Shack, Spotted Pig, Union Square Café, Blue Smoke and Market Table. Pat LaFrieda Meat Purveyors began when Anthony LaFrieda (Pat
Hamburger St. Louis World's Fair. Historian Frank X. Tolbert, noted that Athens resident Clint Murchison said his grandfather dated the hamburger to the 1880s with 'Old Dave' a.k.a. Fletcher Davis. A photo of "Old Dave's Hamburger Stand" from 1904 was sent to Tolbert as evidence of the claim. Various non-specific claims of invention relate to the term "hamburger steak" without mention of its being a sandwich. The first printed American menu which listed hamburger is said to be an 1834 menu from Delmonico's in New York. However, the printer of the original menu was not in business in 1834. In 1889,