IBM 80 Customer Engineering Manual page 3

Card sorting machine
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MINOR REVISION (May 1957)
This edition, Form 225-8766-4, is a minor revision of the preceding edition
but does not obsolete Form 22-8766-3. Principal changes in this edition are:
PAGE
SUBJECT
22 to end
Deletion of all material that is in the
82-80-75 C.B. Reference Manual
76
Added instructions for the 978 Card
Counting Unit
©
1952, 1953, 1956 by International Business Machines Corporation

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