What does OS&Y stand for?

OS&Y stands for "Outside Screw and Yoke"

How to abbreviate "Outside Screw and Yoke"?

"Outside Screw and Yoke" can be abbreviated as OS&Y

What is the meaning of OS&Y abbreviation?

The meaning of OS&Y abbreviation is "Outside Screw and Yoke"

What does OS&Y mean?

OS&Y as abbreviation means "Outside Screw and Yoke"