ANSI/INCITS 21-1967
Rectangular Holes in Twelve-Row Punched Cards

Standard No.

ANSI/INCITS 21-1967

Release Date

1967

Published By

American National Standards Institute （ANSI)

Latest

ANSI/INCITS 21-1967

ANSI/INCITS 21-1967 history

• 1967 ANSI/INCITS 21-1967 Rectangular Holes in Twelve-Row Punched Cards