D
D from BC
I got a chuckle when I saw this..
Wire guides on a toroid..
Patent 4975672
http://www.google.com/patents?id=hIcoAAAAEBAJ&dq=4975672
D from BC
Wire guides on a toroid..
Patent 4975672
http://www.google.com/patents?id=hIcoAAAAEBAJ&dq=4975672
D from BC