Note 10 — Front matter
Reading edition
In 1865 George Parr in his application for an improved screwdriver stated categorically that the scalloped blade served no purpose other than decoration. See U.S. patent 45,854, dated January 10, 1865.
Reading edition
In 1865 George Parr in his application for an improved screwdriver stated categorically that the scalloped blade served no purpose other than decoration. See U.S. patent 45,854, dated January 10, 1865.