ONORM A 2551 Teil.1-1980
Alphanumeric keyboards; keyboards arrangement for mechanical typewriters

Standard No.

ONORM A 2551 Teil.1-1980

Release Date

1980

Published By

AT-ON

Latest

ONORM A 2551 Teil.1-1980

ONORM A 2551 Teil.1-1980 history

• 1980 ONORM A 2551 Teil.1-1980 Alphanumeric keyboards; keyboards arrangement for mechanical typewriters