Bill D
Diamond
- Joined
- Apr 1, 2004
- Location
- Modesto, CA USA
Off Topic: Interesting to learn that world war one and the Russian revolution stopped the spread of the Robertson screwhead while World war 2 lead to worldwide acceptance of the inferior Phillips design.
Bill D.
Robertson, Phillips, and the History of the Screwdriver - Snotr
Bill D.
Robertson, Phillips, and the History of the Screwdriver - Snotr