A-A-50213 Complete Document History
Curves, Drafting, Regular and Irregular: Curve Sets, Drafting, Regular and Irregular; French, Mechanical Engineers, Railroad, and Ships

Complete Current Edition:
   REVISION A - CURVES, DRAFTING, REGULAR & IR - May 18, 1988
   REV A VALIDATION 1 - VALIDATION NOTICE 1, REV A - Sept. 25, 2001
   REV A VALIDATION 2 - VALIDATION NOTICE 2, REV A - Sept. 1, 2006
   REV A VALIDATION 3 - VALIDATION NOTICE 3 FOR REVISION A - Aug. 23, 2019

Obsolete Revision Information:
   BASE - CURVES, DRAFTING, REGULAR & IR - July 28, 1983