CSM
Senior Member
DKSuddeth said:IBM began selling proportional width typewriters in 1941 -- plenty of time for Bush's 1972 guard unit
IBM announces the Electromatic Model 04 electric typewriter, featuring the revolutionary concept of proportional spacing. By assigning varied rather than uniform spacing to different sized characters, the Type 4 recreated the appearance of a printed page, an effect that was further enhanced by a typewriter ribbon innovation that produced clearer, sharper words on the page. The proportional spacing feature became a staple of the IBM Executive series typewriters.
The plot thickens eh?