Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Muna 1965, Richard Isbell akagadzira iyo Americana typeface yeAmerican Type Founders uye akaisa iyo interrobang seimwe yevatambi. Muna 1968, kiyi yeinterrobang yaiwanika pamichina yokunyora yeRemington. Mumakore ekuma1970, kuchinjanisa interrobang keycaps uye typefaces zvaivepo kune mamwe maSmith-Corona typewriters.  Mubvunzo: Kiyi ipi inokosha inogona kuwanwa pamichina yokunyora yeRemington yakaitwa muna 1968?
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