California has 5, Ohio has 2, North Dakota has 1 and Michigan has 71.
This is Bob's Big Boy. I got the numbers from Bigboy.com.
Michigan is keeping a good restaurant alive.
For Frisch's Indiana has 6, Kentucky has 28 and Ohio has 70.
I never heard of Frisch's until today.
Both operate under the Big Boy name but Bob's looks like the food is better.
https://www.frischs.com/ http://www.bigboy.com/
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Ohio only has 2? Pretty sure I've seen far more than 2 here in Ohio...