USAS X3.21

Rectangular Holes in Twelve-Row Punched Cards

Org/Number ID	USAS X3.21
Alternate Organization ID / number	ANSI X3.21; INCITS 21
Version(s)	1967
Bin #	572
Comments
Status	Present
Record last updated	November 9, 2022, 7:20 pm

This is not the most recent edition of this standard.

Newer edition note: 1997