A-A-50206 Revision A, February 18, 1988
RULER, DRAFTING, ADJUSTABLE CURVE
Includes all amendments and changes through Validation Notice 2, March 29, 2007
The General Services Administration has authorized the use of this commercial item description in preference to Military Specification MIL-R-3471.
This description covers adjustable curve rulers intended for use in drawing smooth, regular, and irregular curved lines with a ruling pen, or drafting pencil.