Anonymous ID: 62b8bc July 8, 2022, 8:40 a.m. No.16678282   🗄️.is 🔗kun

>>16490111

Inventor: Deryck F. Boot, Knighton, England

Assignee: MinnesotaMiningand

Manufacturing Company, St. Paul, Minn.

 

A mining company would have tunnels, right?