My great-grandfather immigrated in the last 1800’s and built our family’s farm house. He installed electricity in 1945. The installed Cutler Hammer box was manufactured in 1940. From day one, we have always used Bussmann plug fuses. Here’s an image with the two overcurrent protection companies, who now play for the same team, working together in 1945 on a resi fusible solution that still works today.